388670751

素因数分解:

$3^3\times 7^1\times {\mathrm{2056459}}^1$

素因数の和:2056475

約数の個数: 16

約数和(自身を含む): 658067200

約数和(自身を除く): 269396449

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 2056459, 6169377, 14395213, 18508131, 43185639, 55524393, 129556917, 388670751]

約数ペア:

[(1, 388670751), (3, 129556917), (7, 55524393), (9, 43185639), (21, 18508131), (27, 14395213), (63, 6169377), (189, 2056459)]