20508615

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{8599}}^1$

素因数の和:8663

約数の個数: 24

約数和(自身を含む): 36223200

約数和(自身を除く): 15714585

約数列:

[1, 3, 5, 9, 15, 45, 53, 159, 265, 477, 795, 2385, 8599, 25797, 42995, 77391, 128985, 386955, 455747, 1367241, 2278735, 4101723, 6836205, 20508615]

約数ペア:

[(1, 20508615), (3, 6836205), (5, 4101723), (9, 2278735), (15, 1367241), (45, 455747), (53, 386955), (159, 128985), (265, 77391), (477, 42995), (795, 25797), (2385, 8599)]