Q: What is the sum of all factors of the number 21,125,891 excluding 21,125,891?
A: 2,893,309
The factors of the number 21,125,891 are: 1, 19, 23, 29, 437, 551, 667, 1667, 12673, 31673, 38341, 48343, 728479, 918517, 1111889, 21125891.
If you add them up, you will get the total of 21,125,893. Now subtract 21,125,891 to get 2,893,309