31538689

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:122

約数の個数: 64

約数和(自身を含む): 45964800

約数和(自身を除く): 14426111

約数列:

[1, 7, 13, 17, 19, 29, 37, 91, 119, 133, 203, 221, 247, 259, 323, 377, 481, 493, 551, 629, 703, 1073, 1547, 1729, 2261, 2639, 3367, 3451, 3857, 4199, 4403, 4921, 6409, 7163, 7511, 8177, 9139, 9367, 11951, 13949, 18241, 20387, 29393, 44863, 50141, 57239, 63973, 65569, 83657, 97643, 121771, 127687, 142709, 155363, 237133, 265031, 346579, 852397, 1087541, 1659931, 1855217, 2426053, 4505527, 31538689]

約数ペア:

[(1, 31538689), (7, 4505527), (13, 2426053), (17, 1855217), (19, 1659931), (29, 1087541), (37, 852397), (91, 346579), (119, 265031), (133, 237133), (203, 155363), (221, 142709), (247, 127687), (259, 121771), (323, 97643), (377, 83657), (481, 65569), (493, 63973), (551, 57239), (629, 50141), (703, 44863), (1073, 29393), (1547, 20387), (1729, 18241), (2261, 13949), (2639, 11951), (3367, 9367), (3451, 9139), (3857, 8177), (4199, 7511), (4403, 7163), (4921, 6409)]