Q: What is the sum of all factors of the number 21,320 excluding 21,320?
A: 31,600
The factors of the number 21,320 are: 1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 104, 130, 164, 205, 260, 328, 410, 520, 533, 820, 1066, 1640, 2132, 2665, 4264, 5330, 10660, 21320.
If you add them up, you will get the total of 21,351. Now subtract 21,320 to get 31,600