21383341

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3739}}^1$

素因数の和:3808

約数の個数: 16

約数和(自身を含む): 26329600

約数和(自身を除く): 4946259

約数列:

[1, 7, 19, 43, 133, 301, 817, 3739, 5719, 26173, 71041, 160777, 497287, 1125439, 3054763, 21383341]

約数ペア:

[(1, 21383341), (7, 3054763), (19, 1125439), (43, 497287), (133, 160777), (301, 71041), (817, 26173), (3739, 5719)]