2021172215

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{26041}}^1$

素因数の和:26127

約数の個数: 24

約数和(自身を含む): 2619408528

約数和(自身を除く): 598236313

約数列:

[1, 5, 19, 43, 95, 215, 361, 817, 1805, 4085, 15523, 26041, 77615, 130205, 494779, 1119763, 2473895, 5598815, 9400801, 21275497, 47004005, 106377485, 404234443, 2021172215]

約数ペア:

[(1, 2021172215), (5, 404234443), (19, 106377485), (43, 47004005), (95, 21275497), (215, 9400801), (361, 5598815), (817, 2473895), (1805, 1119763), (4085, 494779), (15523, 130205), (26041, 77615)]