261407259

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{6977}}^1$

素因数の和:7187

約数の個数: 24

約数和(自身を含む): 396238752

約数和(自身を除く): 134831493

約数列:

[1, 3, 9, 23, 69, 181, 207, 543, 1629, 4163, 6977, 12489, 20931, 37467, 62793, 160471, 481413, 1262837, 1444239, 3788511, 11365533, 29045251, 87135753, 261407259]

約数ペア:

[(1, 261407259), (3, 87135753), (9, 29045251), (23, 11365533), (69, 3788511), (181, 1444239), (207, 1262837), (543, 481413), (1629, 160471), (4163, 62793), (6977, 37467), (12489, 20931)]