Q: What is the sum of all factors of the number 21,199 excluding 21,199?
A: 2,561
The factors of the number 21,199 are: 1, 17, 29, 43, 493, 731, 1247, 21199.
If you add them up, you will get the total of 21,201. Now subtract 21,199 to get 2,561