Q: What is the sum of all factors of the number 21,670 excluding 21,670?
A: 21,098
The factors of the number 21,670 are: 1, 2, 5, 10, 11, 22, 55, 110, 197, 394, 985, 1970, 2167, 4334, 10835, 21670.
If you add them up, you will get the total of 21,691. Now subtract 21,670 to get 21,098