Q: What is the sum of all factors of the number 4,221,021 including 4,221,021?

Why is 6,912,000 the sum of all factors of 4,221,021, including 4,221,021?

The factors of the number 4,221,021 are: 1, 3, 7, 19, 21, 57, 71, 133, 149, 213, 399, 447, 497, 1043, 1349, 1491, 2831, 3129, 4047, 8493, 9443, 10579, 19817, 28329, 31737, 59451, 74053, 201001, 222159, 603003, 1407007, 4221021.

If you add them up, you will get the total of 6,912,000.

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