81698981

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{28961}}^1$

素因数の和:29012

約数の個数: 16

約数和(自身を含む): 103799808

約数和(自身を除く): 22100827

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 28961, 202727, 376493, 897791, 2635451, 6284537, 11671283, 81698981]

約数ペア:

[(1, 81698981), (7, 11671283), (13, 6284537), (31, 2635451), (91, 897791), (217, 376493), (403, 202727), (2821, 28961)]