1999131841

素因数分解:

$7^2\times {\mathrm{103}}^1\times {\mathrm{396103}}^1$

素因数の和:396220

約数の個数: 12

約数和(自身を含む): 2348104512

約数和(自身を除く): 348972671

約数列:

[1, 7, 49, 103, 721, 5047, 396103, 2772721, 19409047, 40798609, 285590263, 1999131841]

約数ペア:

[(1, 1999131841), (7, 285590263), (49, 40798609), (103, 19409047), (721, 2772721), (5047, 396103)]