Q: What is the sum of all factors of the number 15,904 excluding 15,904?
A: 20,384
The factors of the number 15,904 are: 1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 71, 112, 142, 224, 284, 497, 568, 994, 1136, 1988, 2272, 3976, 7952, 15904.
If you add them up, you will get the total of 15,924. Now subtract 15,904 to get 20,384