209290081

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{499}}^1$

素因数の和:949

約数の個数: 32

約数和(自身を含む): 282240000

約数和(自身を除く): 72949919

約数列:

[1, 7, 11, 13, 77, 91, 143, 419, 499, 1001, 2933, 3493, 4609, 5447, 5489, 6487, 32263, 38129, 38423, 45409, 59917, 71357, 209081, 419419, 499499, 1463567, 2299891, 2718053, 16099237, 19026371, 29898583, 209290081]

約数ペア:

[(1, 209290081), (7, 29898583), (11, 19026371), (13, 16099237), (77, 2718053), (91, 2299891), (143, 1463567), (419, 499499), (499, 419419), (1001, 209081), (2933, 71357), (3493, 59917), (4609, 45409), (5447, 38423), (5489, 38129), (6487, 32263)]