31631257

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 40320000

約数和(自身を除く): 8688743

約数列:

[1, 7, 19, 29, 59, 133, 139, 203, 413, 551, 973, 1121, 1711, 2641, 3857, 4031, 7847, 8201, 11977, 18487, 28217, 32509, 57407, 76589, 155819, 227563, 237829, 536123, 1090733, 1664803, 4518751, 31631257]

約数ペア:

[(1, 31631257), (7, 4518751), (19, 1664803), (29, 1090733), (59, 536123), (133, 237829), (139, 227563), (203, 155819), (413, 76589), (551, 57407), (973, 32509), (1121, 28217), (1711, 18487), (2641, 11977), (3857, 8201), (4031, 7847)]