Q: What is the sum of all factors of the number 3,885 excluding 3,885?
A: 3,411
The factors of the number 3,885 are: 1, 3, 5, 7, 15, 21, 35, 37, 105, 111, 185, 259, 555, 777, 1295, 3885.
If you add them up, you will get the total of 3,888. Now subtract 3,885 to get 3,411