261520231

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{75781}}^1$

素因数の和:75834

約数の個数: 16

約数和(自身を含む): 327378240

約数和(自身を除く): 65858009

約数列:

[1, 7, 17, 29, 119, 203, 493, 3451, 75781, 530467, 1288277, 2197649, 9017939, 15383543, 37360033, 261520231]

約数ペア:

[(1, 261520231), (7, 37360033), (17, 15383543), (29, 9017939), (119, 2197649), (203, 1288277), (493, 530467), (3451, 75781)]