81691883

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{1697}}^1$

素因数の和:1763

約数の個数: 24

約数和(自身を含む): 105167328

約数和(自身を除く): 23475445

約数列:

[1, 7, 13, 23, 91, 161, 299, 529, 1697, 2093, 3703, 6877, 11879, 22061, 39031, 48139, 154427, 273217, 507403, 897713, 3551821, 6283991, 11670269, 81691883]

約数ペア:

[(1, 81691883), (7, 11670269), (13, 6283991), (23, 3551821), (91, 897713), (161, 507403), (299, 273217), (529, 154427), (1697, 48139), (2093, 39031), (3703, 22061), (6877, 11879)]