1390681521

素因数分解:

$3^3\times {\mathrm{709}}^1\times {\mathrm{72647}}^1$

素因数の和:73365

約数の個数: 16

約数和(自身を含む): 2063203200

約数和(自身を除く): 672521679

約数列:

[1, 3, 9, 27, 709, 2127, 6381, 19143, 72647, 217941, 653823, 1961469, 51506723, 154520169, 463560507, 1390681521]

約数ペア:

[(1, 1390681521), (3, 463560507), (9, 154520169), (27, 51506723), (709, 1961469), (2127, 653823), (6381, 217941), (19143, 72647)]