20553547

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{983}}^1$

素因数の和:1122

約数の個数: 16

約数和(自身を含む): 24560640

約数和(自身を除く): 4007093

約数列:

[1, 7, 29, 103, 203, 721, 983, 2987, 6881, 20909, 28507, 101249, 199549, 708743, 2936221, 20553547]

約数ペア:

[(1, 20553547), (7, 2936221), (29, 708743), (103, 199549), (203, 101249), (721, 28507), (983, 20909), (2987, 6881)]