Q: What is the sum of all factors of the number 221,440,215 excluding 221,440,215?

A: 157,392,681

Why is 157,392,681 the sum of all factors of 221,440,215, excluding 221,440,215?

The factors of the number 221,440,215 are: 1, 3, 5, 15, 17, 51, 85, 103, 255, 309, 515, 1545, 1751, 5253, 8431, 8755, 25293, 26265, 42155, 126465, 143327, 429981, 716635, 868393, 2149905, 2605179, 4341965, 13025895, 14762681, 44288043, 73813405, 221440215.

If you add them up, you will get the total of 221,440,372. Now subtract 221,440,215 to get 157,392,681