Q: What is the sum of all factors of the number 221,403 excluding 221,403?
A: 142,373
The factors of the number 221,403 are: 1, 3, 7, 13, 21, 39, 91, 273, 811, 2433, 5677, 10543, 17031, 31629, 73801, 221403.
If you add them up, you will get the total of 221,545. Now subtract 221,403 to get 142,373