21068511

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{3271}}^1$

素因数の和:3406

約数の個数: 16

約数和(自身を含む): 29840640

約数和(自身を除く): 8772129

約数列:

[1, 3, 19, 57, 113, 339, 2147, 3271, 6441, 9813, 62149, 186447, 369623, 1108869, 7022837, 21068511]

約数ペア:

[(1, 21068511), (3, 7022837), (19, 1108869), (57, 369623), (113, 186447), (339, 62149), (2147, 9813), (3271, 6441)]