Q: What is the sum of all factors of the number 20,972 excluding 20,972?
A: 22,120
The factors of the number 20,972 are: 1, 2, 4, 7, 14, 28, 49, 98, 107, 196, 214, 428, 749, 1498, 2996, 5243, 10486, 20972.
If you add them up, you will get the total of 20,994. Now subtract 20,972 to get 22,120