409640959

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{20369}}^1$

素因数の和:20419

約数の個数: 24

約数和(自身を含む): 536790240

約数和(自身を除く): 127149281

約数列:

[1, 7, 13, 17, 91, 119, 169, 221, 1183, 1547, 2873, 20111, 20369, 142583, 264797, 346273, 1853579, 2423911, 3442361, 4501549, 24096527, 31510843, 58520137, 409640959]

約数ペア:

[(1, 409640959), (7, 58520137), (13, 31510843), (17, 24096527), (91, 4501549), (119, 3442361), (169, 2423911), (221, 1853579), (1183, 346273), (1547, 264797), (2873, 142583), (20111, 20369)]