Q: What is the sum of all factors of the number 159,991 excluding 159,991?
A: 18,313
The factors of the number 159,991 are: 1, 13, 31, 397, 403, 5161, 12307, 159991.
If you add them up, you will get the total of 160,009. Now subtract 159,991 to get 18,313