Q: What is the sum of all factors of the number 15,691 excluding 15,691?
A: 2,453
The factors of the number 15,691 are: 1, 13, 17, 71, 221, 923, 1207, 15691.
If you add them up, you will get the total of 15,693. Now subtract 15,691 to get 2,453