21373107

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{23669}}^1$

素因数の和:23722

約数の個数: 16

約数和(自身を含む): 33327360

約数和(自身を除く): 11954253

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 23669, 71007, 165683, 497049, 1017767, 3053301, 7124369, 21373107]

約数ペア:

[(1, 21373107), (3, 7124369), (7, 3053301), (21, 1017767), (43, 497049), (129, 165683), (301, 71007), (903, 23669)]