20012587

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3911}}^1$

素因数の和:3978

約数の個数: 16

約数和(自身を含む): 24786432

約数和(自身を除く): 4773845

約数列:

[1, 7, 17, 43, 119, 301, 731, 3911, 5117, 27377, 66487, 168173, 465409, 1177211, 2858941, 20012587]

約数ペア:

[(1, 20012587), (7, 2858941), (17, 1177211), (43, 465409), (119, 168173), (301, 66487), (731, 27377), (3911, 5117)]