Q: What is the sum of all factors of the number 6,885 excluding 6,885?
A: 6,183
The factors of the number 6,885 are: 1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 255, 405, 459, 765, 1377, 2295, 6885.
If you add them up, you will get the total of 6,891. Now subtract 6,885 to get 6,183