20487873

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{57389}}^1$

素因数の和:57416

約数の個数: 16

約数和(自身を含む): 33056640

約数和(自身を除く): 12568767

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 57389, 172167, 401723, 975613, 1205169, 2926839, 6829291, 20487873]

約数ペア:

[(1, 20487873), (3, 6829291), (7, 2926839), (17, 1205169), (21, 975613), (51, 401723), (119, 172167), (357, 57389)]