2640239

素因数分解:

$7^1\times {\mathrm{23}}^3\times {\mathrm{31}}^1$

素因数の和:107

約数の個数: 16

約数和(自身を含む): 3256320

約数和(自身を除く): 616081

約数列:

[1, 7, 23, 31, 161, 217, 529, 713, 3703, 4991, 12167, 16399, 85169, 114793, 377177, 2640239]

約数ペア:

[(1, 2640239), (7, 377177), (23, 114793), (31, 85169), (161, 16399), (217, 12167), (529, 4991), (713, 3703)]