780489

素因数分解:

$3^3\times {\mathrm{137}}^1\times {\mathrm{211}}^1$

素因数の和:357

約数の個数: 16

約数和(自身を含む): 1170240

約数和(自身を除く): 389751

約数列:

[1, 3, 9, 27, 137, 211, 411, 633, 1233, 1899, 3699, 5697, 28907, 86721, 260163, 780489]

約数ペア:

[(1, 780489), (3, 260163), (9, 86721), (27, 28907), (137, 5697), (211, 3699), (411, 1899), (633, 1233)]