261569241

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{21323}}^1$

素因数の和:21405

約数の個数: 24

約数和(自身を含む): 399185280

約数和(自身を除く): 137616039

約数列:

[1, 3, 9, 29, 47, 87, 141, 261, 423, 1363, 4089, 12267, 21323, 63969, 191907, 618367, 1002181, 1855101, 3006543, 5565303, 9019629, 29063249, 87189747, 261569241]

約数ペア:

[(1, 261569241), (3, 87189747), (9, 29063249), (29, 9019629), (47, 5565303), (87, 3006543), (141, 1855101), (261, 1002181), (423, 618367), (1363, 191907), (4089, 63969), (12267, 21323)]