257208957

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{461}}^1\times {\mathrm{1319}}^1$

素因数の和:1833

約数の個数: 24

約数和(自身を含む): 380540160

約数和(自身を除く): 123331203

約数列:

[1, 3, 9, 47, 141, 423, 461, 1319, 1383, 3957, 4149, 11871, 21667, 61993, 65001, 185979, 195003, 557937, 608059, 1824177, 5472531, 28578773, 85736319, 257208957]

約数ペア:

[(1, 257208957), (3, 85736319), (9, 28578773), (47, 5472531), (141, 1824177), (423, 608059), (461, 557937), (1319, 195003), (1383, 185979), (3957, 65001), (4149, 61993), (11871, 21667)]