209391

素因数分解:

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

素因数の和:95

約数の個数: 24

約数和(自身を含む): 351360

約数和(自身を除く): 141969

約数列:

[1, 3, 7, 13, 21, 39, 59, 91, 169, 177, 273, 413, 507, 767, 1183, 1239, 2301, 3549, 5369, 9971, 16107, 29913, 69797, 209391]

約数ペア:

[(1, 209391), (3, 69797), (7, 29913), (13, 16107), (21, 9971), (39, 5369), (59, 3549), (91, 2301), (169, 1239), (177, 1183), (273, 767), (413, 507)]