Q: What is the sum of all factors of the number 639,559 excluding 639,559?
A: 50,921
The factors of the number 639,559 are: 1, 19, 41, 779, 821, 15599, 33661, 639559.
If you add them up, you will get the total of 639,609. Now subtract 639,559 to get 50,921