21986525

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4703}}^1$

素因数の和:4741

約数の個数: 24

約数和(自身を含む): 31497984

約数和(自身を除く): 9511459

約数列:

[1, 5, 11, 17, 25, 55, 85, 187, 275, 425, 935, 4675, 4703, 23515, 51733, 79951, 117575, 258665, 399755, 879461, 1293325, 1998775, 4397305, 21986525]

約数ペア:

[(1, 21986525), (5, 4397305), (11, 1998775), (17, 1293325), (25, 879461), (55, 399755), (85, 258665), (187, 117575), (275, 79951), (425, 51733), (935, 23515), (4675, 4703)]