12688407

素因数分解:

$3^4\times {\mathrm{383}}^1\times {\mathrm{409}}^1$

素因数の和:804

約数の個数: 20

約数和(自身を含む): 19050240

約数和(自身を除く): 6361833

約数列:

[1, 3, 9, 27, 81, 383, 409, 1149, 1227, 3447, 3681, 10341, 11043, 31023, 33129, 156647, 469941, 1409823, 4229469, 12688407]

約数ペア:

[(1, 12688407), (3, 4229469), (9, 1409823), (27, 469941), (81, 156647), (383, 33129), (409, 31023), (1149, 11043), (1227, 10341), (3447, 3681)]