Beginner wondering if his code is 'Pythonic'

This is really the first thing that I have written in python. I come from Java background. I don't want to just learn how to program java code with Python syntax. I want to learn how to program in a pythonic paradigm.

Could you guys please comment on how I can make the following code more pythonic?

from math import sqrt

# recursively computes the factors of a number
def factors(num):
factorList = []
numroot = int(sqrt(num)) + 1
numleft = num
# brute force divide the number until you find a factor
for i in range(2, numroot):
if num % i == 0:
# if we found a factor, add it to the list and compute the remainder
factorList.append(i)
numleft = num / i
break
# if we didn't find a factor, get out of here!
if numleft == num:
factorList.append(num)
return factorList
# now recursively find the rest of the factors
restFactors = factors(numleft)
factorList.extend(restFactors)

return factorList

# grabs  all of the twos in the list and puts them into 2 ^ x form
def transformFactorList(factorList):
num2s = 0
# remove all twos, counting them as we go
while 2 in factorList:
factorList.remove(2)
num2s += 1
# simply return the list with the 2's back in the right spot
if num2s == 0: return factorList
if num2s == 1:
factorList.insert(0, 2)
return factorList
factorList.insert(0, '2 ^ ' + str(num2s))
return factorList

print transformFactorList(factors(#some number))