Q: What is the sum of all factors of the number 21,931 excluding 21,931?
A: 5,173
The factors of the number 21,931 are: 1, 7, 13, 91, 241, 1687, 3133, 21931.
If you add them up, you will get the total of 21,936. Now subtract 21,931 to get 5,173