156720681

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{31151}}^1$

素因数の和:31213

約数の個数: 24

約数和(自身を含む): 249465216

約数和(自身を除く): 92744535

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 387, 559, 1677, 5031, 31151, 93453, 280359, 404963, 1214889, 1339493, 3644667, 4018479, 12055437, 17413409, 52240227, 156720681]

約数ペア:

[(1, 156720681), (3, 52240227), (9, 17413409), (13, 12055437), (39, 4018479), (43, 3644667), (117, 1339493), (129, 1214889), (387, 404963), (559, 280359), (1677, 93453), (5031, 31151)]