209628

素因数分解:

$2^2\times 3^4\times {\mathrm{647}}^1$

素因数の和:663

約数の個数: 30

約数和(自身を含む): 548856

約数和(自身を除く): 339228

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 647, 1294, 1941, 2588, 3882, 5823, 7764, 11646, 17469, 23292, 34938, 52407, 69876, 104814, 209628]

約数ペア:

[(1, 209628), (2, 104814), (3, 69876), (4, 52407), (6, 34938), (9, 23292), (12, 17469), (18, 11646), (27, 7764), (36, 5823), (54, 3882), (81, 2588), (108, 1941), (162, 1294), (324, 647)]