20443619

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2953}}^1$

素因数の和:3026

約数の個数: 16

約数和(自身を含む): 24955392

約数和(自身を除く): 4511773

約数列:

[1, 7, 23, 43, 161, 301, 989, 2953, 6923, 20671, 67919, 126979, 475433, 888853, 2920517, 20443619]

約数ペア:

[(1, 20443619), (7, 2920517), (23, 888853), (43, 475433), (161, 126979), (301, 67919), (989, 20671), (2953, 6923)]