Q: What is the sum of all factors of the number 39,897 excluding 39,897?
A: 29,991
The factors of the number 39,897 are: 1, 3, 9, 11, 13, 31, 33, 39, 93, 99, 117, 143, 279, 341, 403, 429, 1023, 1209, 1287, 3069, 3627, 4433, 13299, 39897.
If you add them up, you will get the total of 39,926. Now subtract 39,897 to get 29,991