21000251960

素因数分解:

$2^3\times 5^1\times {\mathrm{525006299}}^1$

素因数の和:525006310

約数の個数: 16

約数和(自身を含む): 47250567000

約数和(自身を除く): 26250315040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 525006299, 1050012598, 2100025196, 2625031495, 4200050392, 5250062990, 10500125980, 21000251960]

約数ペア:

[(1, 21000251960), (2, 10500125980), (4, 5250062990), (5, 4200050392), (8, 2625031495), (10, 2100025196), (20, 1050012598), (40, 525006299)]