20740489

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{521}}^1$

素因数の和:597

約数の個数: 24

約数和(自身を含む): 26659584

約数和(自身を除く): 5919095

約数列:

[1, 7, 11, 47, 77, 121, 329, 517, 521, 847, 3619, 3647, 5687, 5731, 24487, 39809, 40117, 63041, 171409, 269357, 441287, 1885499, 2962927, 20740489]

約数ペア:

[(1, 20740489), (7, 2962927), (11, 1885499), (47, 441287), (77, 269357), (121, 171409), (329, 63041), (517, 40117), (521, 39809), (847, 24487), (3619, 5731), (3647, 5687)]