21795525

素因数分解:

$3^2\times 5^2\times {\mathrm{157}}^1\times {\mathrm{617}}^1$

素因数の和:790

約数の個数: 36

約数和(自身を含む): 39350532

約数和(自身を除く): 17555007

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 157, 225, 471, 617, 785, 1413, 1851, 2355, 3085, 3925, 5553, 7065, 9255, 11775, 15425, 27765, 35325, 46275, 96869, 138825, 290607, 484345, 871821, 1453035, 2421725, 4359105, 7265175, 21795525]

約数ペア:

[(1, 21795525), (3, 7265175), (5, 4359105), (9, 2421725), (15, 1453035), (25, 871821), (45, 484345), (75, 290607), (157, 138825), (225, 96869), (471, 46275), (617, 35325), (785, 27765), (1413, 15425), (1851, 11775), (2355, 9255), (3085, 7065), (3925, 5553)]