31551507

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{547}}^1$

素因数の和:612

約数の個数: 48

約数和(自身を含む): 53857440

約数和(自身を除く): 22305933

約数列:

[1, 3, 9, 13, 17, 29, 39, 51, 87, 117, 153, 221, 261, 377, 493, 547, 663, 1131, 1479, 1641, 1989, 3393, 4437, 4923, 6409, 7111, 9299, 15863, 19227, 21333, 27897, 47589, 57681, 63999, 83691, 120887, 142767, 206219, 269671, 362661, 618657, 809013, 1087983, 1855971, 2427039, 3505723, 10517169, 31551507]

約数ペア:

[(1, 31551507), (3, 10517169), (9, 3505723), (13, 2427039), (17, 1855971), (29, 1087983), (39, 809013), (51, 618657), (87, 362661), (117, 269671), (153, 206219), (221, 142767), (261, 120887), (377, 83691), (493, 63999), (547, 57681), (663, 47589), (1131, 27897), (1479, 21333), (1641, 19227), (1989, 15863), (3393, 9299), (4437, 7111), (4923, 6409)]