21148491

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 35838720

約数和(自身を除く): 14690229

約数列:

[1, 3, 7, 13, 21, 39, 59, 91, 101, 169, 177, 273, 303, 413, 507, 707, 767, 1183, 1239, 1313, 2121, 2301, 3549, 3939, 5369, 5959, 9191, 9971, 16107, 17069, 17877, 27573, 29913, 41713, 51207, 69797, 77467, 119483, 125139, 209391, 232401, 358449, 542269, 1007071, 1626807, 3021213, 7049497, 21148491]

約数ペア:

[(1, 21148491), (3, 7049497), (7, 3021213), (13, 1626807), (21, 1007071), (39, 542269), (59, 358449), (91, 232401), (101, 209391), (169, 125139), (177, 119483), (273, 77467), (303, 69797), (413, 51207), (507, 41713), (707, 29913), (767, 27573), (1183, 17877), (1239, 17069), (1313, 16107), (2121, 9971), (2301, 9191), (3549, 5959), (3939, 5369)]