20161774388

素因数分解:

$2^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{2801803}}^1$

素因数の和:2802071

約数の個数: 24

約数和(自身を含む): 40480464192

約数和(自身を除く): 20318689804

約数列:

[1, 2, 4, 7, 14, 28, 257, 514, 1028, 1799, 3598, 7196, 2801803, 5603606, 11207212, 19612621, 39225242, 78450484, 720063371, 1440126742, 2880253484, 5040443597, 10080887194, 20161774388]

約数ペア:

[(1, 20161774388), (2, 10080887194), (4, 5040443597), (7, 2880253484), (14, 1440126742), (28, 720063371), (257, 78450484), (514, 39225242), (1028, 19612621), (1799, 11207212), (3598, 5603606), (7196, 2801803)]