81668669

素因数分解:

${\mathrm{19}}^2\times {\mathrm{29}}^2\times {\mathrm{269}}^1$

素因数の和:365

約数の個数: 18

約数和(自身を含む): 89599770

約数和(自身を除く): 7931101

約数列:

[1, 19, 29, 269, 361, 551, 841, 5111, 7801, 10469, 15979, 97109, 148219, 226229, 303601, 2816161, 4298351, 81668669]

約数ペア:

[(1, 81668669), (19, 4298351), (29, 2816161), (269, 303601), (361, 226229), (551, 148219), (841, 97109), (5111, 15979), (7801, 10469)]