Q: What is the sum of all factors of the number 27,621 excluding 27,621?
A: 18,843
The factors of the number 27,621 are: 1, 3, 9, 11, 27, 31, 33, 81, 93, 99, 279, 297, 341, 837, 891, 1023, 2511, 3069, 9207, 27621.
If you add them up, you will get the total of 27,639. Now subtract 27,621 to get 18,843