21187033

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{661}}^1$

素因数の和:928

約数の個数: 16

約数和(自身を含む): 25632640

約数和(自身を除く): 4445607

約数列:

[1, 7, 19, 133, 241, 661, 1687, 4579, 4627, 12559, 32053, 87913, 159301, 1115107, 3026719, 21187033]

約数ペア:

[(1, 21187033), (7, 3026719), (19, 1115107), (133, 159301), (241, 87913), (661, 32053), (1687, 12559), (4579, 4627)]