20790091

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{929}}^1$

素因数の和:1098

約数の個数: 16

約数和(自身を含む): 24998400

約数和(自身を除く): 4208309

約数列:

[1, 7, 23, 139, 161, 929, 973, 3197, 6503, 21367, 22379, 129131, 149569, 903917, 2970013, 20790091]

約数ペア:

[(1, 20790091), (7, 2970013), (23, 903917), (139, 149569), (161, 129131), (929, 22379), (973, 21367), (3197, 6503)]