81393481

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{1987}}^1$

素因数の和:2160

約数の個数: 16

約数和(自身を含む): 92179584

約数和(自身を除く): 10786103

約数列:

[1, 13, 23, 137, 299, 1781, 1987, 3151, 25831, 40963, 45701, 272219, 594113, 3538847, 6261037, 81393481]

約数ペア:

[(1, 81393481), (13, 6261037), (23, 3538847), (137, 594113), (299, 272219), (1781, 45701), (1987, 40963), (3151, 25831)]