Q: What is the sum of all factors of the number 21,390 including 21,390?
A: 55,296
The factors of the number 21,390 are: 1, 2, 3, 5, 6, 10, 15, 23, 30, 31, 46, 62, 69, 93, 115, 138, 155, 186, 230, 310, 345, 465, 690, 713, 930, 1426, 2139, 3565, 4278, 7130, 10695, 21390.
If you add them up, you will get the total of 55,296.