81643793

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{28657}}^1$

素因数の和:28712

約数の個数: 16

約数和(自身を含む): 104544384

約数和(自身を除く): 22900591

約数列:

[1, 7, 11, 37, 77, 259, 407, 2849, 28657, 200599, 315227, 1060309, 2206589, 7422163, 11663399, 81643793]

約数ペア:

[(1, 81643793), (7, 11663399), (11, 7422163), (37, 2206589), (77, 1060309), (259, 315227), (407, 200599), (2849, 28657)]