Q: What is the sum of all factors of the number 20,790 excluding 20,790?

A: 48,330

Why is 48,330 the sum of all factors of 20,790, excluding 20,790?

The factors of the number 20,790 are: 1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 27, 30, 33, 35, 42, 45, 54, 55, 63, 66, 70, 77, 90, 99, 105, 110, 126, 135, 154, 165, 189, 198, 210, 231, 270, 297, 315, 330, 378, 385, 462, 495, 594, 630, 693, 770, 945, 990, 1155, 1386, 1485, 1890, 2079, 2310, 2970, 3465, 4158, 6930, 10395, 20790.

If you add them up, you will get the total of 20,838. Now subtract 20,790 to get 48,330