20161819916

素因数分解:

$2^2\times 7^1\times {\mathrm{720064997}}^1$

素因数の和:720065008

約数の個数: 12

約数和(自身を含む): 40323639888

約数和(自身を除く): 20161819972

約数列:

[1, 2, 4, 7, 14, 28, 720064997, 1440129994, 2880259988, 5040454979, 10080909958, 20161819916]

約数ペア:

[(1, 20161819916), (2, 10080909958), (4, 5040454979), (7, 2880259988), (14, 1440129994), (28, 720064997)]