Q: What is the sum of all factors of the number 23,391 excluding 23,391?
A: 12,177
The factors of the number 23,391 are: 1, 3, 9, 23, 69, 113, 207, 339, 1017, 2599, 7797, 23391.
If you add them up, you will get the total of 23,403. Now subtract 23,391 to get 12,177