13971321

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2437}}^1$

素因数の和:2470

約数の個数: 36

約数和(自身を含む): 25291812

約数和(自身を除く): 11320491

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 441, 637, 819, 1911, 2437, 5733, 7311, 17059, 21933, 31681, 51177, 95043, 119413, 153531, 221767, 285129, 358239, 665301, 1074717, 1552369, 1995903, 4657107, 13971321]

約数ペア:

[(1, 13971321), (3, 4657107), (7, 1995903), (9, 1552369), (13, 1074717), (21, 665301), (39, 358239), (49, 285129), (63, 221767), (91, 153531), (117, 119413), (147, 95043), (273, 51177), (441, 31681), (637, 21933), (819, 17059), (1911, 7311), (2437, 5733)]