Q: What is the sum of all factors of the number 21,444 excluding 21,444?
A: 28,620
The factors of the number 21,444 are: 1, 2, 3, 4, 6, 12, 1787, 3574, 5361, 7148, 10722, 21444.
If you add them up, you will get the total of 21,472. Now subtract 21,444 to get 28,620