18897081

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1231}}^1$

素因数の和:1301

約数の個数: 32

約数和(自身を含む): 31223808

約数和(自身を除く): 12326727

約数列:

[1, 3, 7, 17, 21, 43, 51, 119, 129, 301, 357, 731, 903, 1231, 2193, 3693, 5117, 8617, 15351, 20927, 25851, 52933, 62781, 146489, 158799, 370531, 439467, 899861, 1111593, 2699583, 6299027, 18897081]

約数ペア:

[(1, 18897081), (3, 6299027), (7, 2699583), (17, 1111593), (21, 899861), (43, 439467), (51, 370531), (119, 158799), (129, 146489), (301, 62781), (357, 52933), (731, 25851), (903, 20927), (1231, 15351), (2193, 8617), (3693, 5117)]