21458717

素因数分解:

$7^2\times {\mathrm{131}}^1\times {\mathrm{3343}}^1$

素因数の和:3488

約数の個数: 12

約数和(自身を含む): 25160256

約数和(自身を除く): 3701539

約数列:

[1, 7, 49, 131, 917, 3343, 6419, 23401, 163807, 437933, 3065531, 21458717]

約数ペア:

[(1, 21458717), (7, 3065531), (49, 437933), (131, 163807), (917, 23401), (3343, 6419)]