Q: What is the sum of all factors of the number 3,843 excluding 3,843?
A: 2,605
The factors of the number 3,843 are: 1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843.
If you add them up, you will get the total of 3,845. Now subtract 3,843 to get 2,605