81221525

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{42193}}^1$

素因数の和:42221

約数の個数: 24

約数和(自身を含む): 125569344

約数和(自身を除く): 44347819

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 175, 275, 385, 1925, 42193, 210965, 295351, 464123, 1054825, 1476755, 2320615, 3248861, 7383775, 11603075, 16244305, 81221525]

約数ペア:

[(1, 81221525), (5, 16244305), (7, 11603075), (11, 7383775), (25, 3248861), (35, 2320615), (55, 1476755), (77, 1054825), (175, 464123), (275, 295351), (385, 210965), (1925, 42193)]