Q: What is the sum of all factors of the number 20,745,525 excluding 20,745,525?

A: 16,377,099

Why is 16,377,099 the sum of all factors of 20,745,525, excluding 20,745,525?

The factors of the number 20,745,525 are: 1, 3, 5, 15, 17, 25, 51, 53, 75, 85, 159, 255, 265, 307, 425, 795, 901, 921, 1275, 1325, 1535, 2703, 3975, 4505, 4605, 5219, 7675, 13515, 15657, 16271, 22525, 23025, 26095, 48813, 67575, 78285, 81355, 130475, 244065, 276607, 391425, 406775, 829821, 1220325, 1383035, 4149105, 6915175, 20745525.

If you add them up, you will get the total of 20,745,541. Now subtract 20,745,525 to get 16,377,099