Q: What is the sum of all factors of the number 42,891 excluding 42,891?
A: 19,821
The factors of the number 42,891 are: 1, 3, 17, 29, 51, 87, 493, 841, 1479, 2523, 14297, 42891.
If you add them up, you will get the total of 42,910. Now subtract 42,891 to get 19,821