Q: What is the sum of all factors of the number 21,063 excluding 21,063?
A: 13,497
The factors of the number 21,063 are: 1, 3, 7, 17, 21, 51, 59, 119, 177, 357, 413, 1003, 1239, 3009, 7021, 21063.
If you add them up, you will get the total of 21,076. Now subtract 21,063 to get 13,497