Q: What is the sum of all factors of the number 13,884 excluding 13,884?
A: 21,396
The factors of the number 13,884 are: 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 89, 156, 178, 267, 356, 534, 1068, 1157, 2314, 3471, 4628, 6942, 13884.
If you add them up, you will get the total of 13,905. Now subtract 13,884 to get 21,396