Q: What is the sum of all factors of the number 27,972 excluding 27,972?

A: 57,148

Why is 57,148 the sum of all factors of 27,972, excluding 27,972?

The factors of the number 27,972 are: 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 37, 42, 54, 63, 74, 84, 108, 111, 126, 148, 189, 222, 252, 259, 333, 378, 444, 518, 666, 756, 777, 999, 1036, 1332, 1554, 1998, 2331, 3108, 3996, 4662, 6993, 9324, 13986, 27972.

If you add them up, you will get the total of 28,029. Now subtract 27,972 to get 57,148