Q: What is the sum of all factors of the number 639,591 excluding 639,591?
A: 263,433
The factors of the number 639,591 are: 1, 3, 17, 51, 12541, 37623, 213197, 639591.
If you add them up, you will get the total of 639,854. Now subtract 639,591 to get 263,433