12780666

素因数分解:

$2^1\times 3^4\times {\mathrm{78893}}^1$

素因数の和:78907

約数の個数: 20

約数和(自身を含む): 28638522

約数和(自身を除く): 15857856

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 78893, 157786, 236679, 473358, 710037, 1420074, 2130111, 4260222, 6390333, 12780666]

約数ペア:

[(1, 12780666), (2, 6390333), (3, 4260222), (6, 2130111), (9, 1420074), (18, 710037), (27, 473358), (54, 236679), (81, 157786), (162, 78893)]