20161621228

素因数分解:

$2^2\times 7^1\times {\mathrm{720057901}}^1$

素因数の和:720057912

約数の個数: 12

約数和(自身を含む): 40323242512

約数和(自身を除く): 20161621284

約数列:

[1, 2, 4, 7, 14, 28, 720057901, 1440115802, 2880231604, 5040405307, 10080810614, 20161621228]

約数ペア:

[(1, 20161621228), (2, 10080810614), (4, 5040405307), (7, 2880231604), (14, 1440115802), (28, 720057901)]