Q: What is the sum of all factors of the number 42,543 excluding 42,543?
A: 21,417
The factors of the number 42,543 are: 1, 3, 9, 29, 87, 163, 261, 489, 1467, 4727, 14181, 42543.
If you add them up, you will get the total of 42,564. Now subtract 42,543 to get 21,417