21400107

素因数分解:

$3^1\times {\mathrm{107}}^1\times {\mathrm{163}}^1\times {\mathrm{409}}^1$

素因数の和:682

約数の個数: 16

約数和(自身を含む): 29047680

約数和(自身を除く): 7647573

約数列:

[1, 3, 107, 163, 321, 409, 489, 1227, 17441, 43763, 52323, 66667, 131289, 200001, 7133369, 21400107]

約数ペア:

[(1, 21400107), (3, 7133369), (107, 200001), (163, 131289), (321, 66667), (409, 52323), (489, 43763), (1227, 17441)]