Q: What is the sum of all factors of the number 221,256 excluding 221,256?

A: 465,144

Why is 465,144 the sum of all factors of 221,256, excluding 221,256?

The factors of the number 221,256 are: 1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 439, 504, 878, 1317, 1756, 2634, 3073, 3512, 3951, 5268, 6146, 7902, 9219, 10536, 12292, 15804, 18438, 24584, 27657, 31608, 36876, 55314, 73752, 110628, 221256.

If you add them up, you will get the total of 221,721. Now subtract 221,256 to get 465,144