Q: What is the sum of all factors of the number 1,122,121 including 1,122,121?

Why is 1,612,800 the sum of all factors of 1,122,121, including 1,122,121?

The factors of the number 1,122,121 are: 1, 7, 11, 13, 19, 59, 77, 91, 133, 143, 209, 247, 413, 649, 767, 1001, 1121, 1463, 1729, 2717, 4543, 5369, 7847, 8437, 12331, 14573, 19019, 59059, 86317, 102011, 160303, 1122121.

If you add them up, you will get the total of 1,612,800.

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