Q: What is the sum of all factors of the number 21,972 excluding 21,972?
A: 29,324
The factors of the number 21,972 are: 1, 2, 3, 4, 6, 12, 1831, 3662, 5493, 7324, 10986, 21972.
If you add them up, you will get the total of 22,001. Now subtract 21,972 to get 29,324