20312138

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{3217}}^1$

素因数の和:3278

約数の個数: 32

約数和(自身を含む): 38924928

約数和(自身を除く): 18612790

約数列:

[1, 2, 7, 11, 14, 22, 41, 77, 82, 154, 287, 451, 574, 902, 3157, 3217, 6314, 6434, 22519, 35387, 45038, 70774, 131897, 247709, 263794, 495418, 923279, 1450867, 1846558, 2901734, 10156069, 20312138]

約数ペア:

[(1, 20312138), (2, 10156069), (7, 2901734), (11, 1846558), (14, 1450867), (22, 923279), (41, 495418), (77, 263794), (82, 247709), (154, 131897), (287, 70774), (451, 45038), (574, 35387), (902, 22519), (3157, 6434), (3217, 6314)]