31389271991

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{1195463}}^1$

素因数の和:1195523

約数の個数: 24

約数和(自身を含む): 40703158272

約数和(自身を除く): 9313886281

約数列:

[1, 7, 11, 31, 77, 121, 217, 341, 847, 2387, 3751, 26257, 1195463, 8368241, 13150093, 37059353, 92050651, 144651023, 259415471, 407652883, 1012557161, 2853570181, 4484181713, 31389271991]

約数ペア:

[(1, 31389271991), (7, 4484181713), (11, 2853570181), (31, 1012557161), (77, 407652883), (121, 259415471), (217, 144651023), (341, 92050651), (847, 37059353), (2387, 13150093), (3751, 8368241), (26257, 1195463)]