21124360

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{8951}}^1$

素因数の和:9021

約数の個数: 32

約数和(自身を含む): 48340800

約数和(自身を除く): 27216440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 8951, 17902, 35804, 44755, 71608, 89510, 179020, 358040, 528109, 1056218, 2112436, 2640545, 4224872, 5281090, 10562180, 21124360]

約数ペア:

[(1, 21124360), (2, 10562180), (4, 5281090), (5, 4224872), (8, 2640545), (10, 2112436), (20, 1056218), (40, 528109), (59, 358040), (118, 179020), (236, 89510), (295, 71608), (472, 44755), (590, 35804), (1180, 17902), (2360, 8951)]