Q: What is the sum of all factors of the number 39,902 excluding 39,902?
A: 21,010
The factors of the number 39,902 are: 1, 2, 71, 142, 281, 562, 19951, 39902.
If you add them up, you will get the total of 39,923. Now subtract 39,902 to get 21,010