81420681

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{12641}}^1$

素因数の和:12776

約数の個数: 16

約数和(自身を含む): 115295040

約数和(自身を除く): 33874359

約数列:

[1, 3, 19, 57, 113, 339, 2147, 6441, 12641, 37923, 240179, 720537, 1428433, 4285299, 27140227, 81420681]

約数ペア:

[(1, 81420681), (3, 27140227), (19, 4285299), (57, 1428433), (113, 720537), (339, 240179), (2147, 37923), (6441, 12641)]