Q: What is the sum of all factors of the number 1,553,643 including 1,553,643?

Why is 2,821,728 the sum of all factors of 1,553,643, including 1,553,643?

The factors of the number 1,553,643 are: 1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 271, 273, 441, 637, 813, 819, 1897, 1911, 2439, 3523, 5691, 5733, 10569, 13279, 17073, 24661, 31707, 39837, 73983, 119511, 172627, 221949, 517881, 1553643.

If you add them up, you will get the total of 2,821,728.

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