Q: What is the sum of all factors of the number 158,821 excluding 158,821?
A: 21,499
The factors of the number 158,821 are: 1, 13, 19, 247, 643, 8359, 12217, 158821.
If you add them up, you will get the total of 158,842. Now subtract 158,821 to get 21,499