81538171

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{1973}}^1$

素因数の和:2031

約数の個数: 24

約数和(自身を含む): 101811024

約数和(自身を除く): 20272853

約数列:

[1, 11, 13, 17, 143, 187, 221, 289, 1973, 2431, 3179, 3757, 21703, 25649, 33541, 41327, 282139, 368951, 436033, 570197, 4796363, 6272167, 7412561, 81538171]

約数ペア:

[(1, 81538171), (11, 7412561), (13, 6272167), (17, 4796363), (143, 570197), (187, 436033), (221, 368951), (289, 282139), (1973, 41327), (2431, 33541), (3179, 25649), (3757, 21703)]