21147550

素因数分解:

$2^1\times 5^2\times {\mathrm{151}}^1\times {\mathrm{2801}}^1$

素因数の和:2964

約数の個数: 24

約数和(自身を含む): 39609072

約数和(自身を除く): 18461522

約数列:

[1, 2, 5, 10, 25, 50, 151, 302, 755, 1510, 2801, 3775, 5602, 7550, 14005, 28010, 70025, 140050, 422951, 845902, 2114755, 4229510, 10573775, 21147550]

約数ペア:

[(1, 21147550), (2, 10573775), (5, 4229510), (10, 2114755), (25, 845902), (50, 422951), (151, 140050), (302, 70025), (755, 28010), (1510, 14005), (2801, 7550), (3775, 5602)]