81515629

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^2\times {\mathrm{1669}}^1$

素因数の和:1729

約数の個数: 18

約数和(自身を含む): 93822270

約数和(自身を除く): 12306641

約数列:

[1, 13, 17, 169, 221, 289, 1669, 2873, 3757, 21697, 28373, 48841, 282061, 368849, 482341, 4795037, 6270433, 81515629]

約数ペア:

[(1, 81515629), (13, 6270433), (17, 4795037), (169, 482341), (221, 368849), (289, 282061), (1669, 48841), (2873, 28373), (3757, 21697)]