20449828

素因数分解:

$2^2\times 7^1\times {\mathrm{263}}^1\times {\mathrm{2777}}^1$

素因数の和:3051

約数の個数: 24

約数和(自身を含む): 41069952

約数和(自身を除く): 20620124

約数列:

[1, 2, 4, 7, 14, 28, 263, 526, 1052, 1841, 2777, 3682, 5554, 7364, 11108, 19439, 38878, 77756, 730351, 1460702, 2921404, 5112457, 10224914, 20449828]

約数ペア:

[(1, 20449828), (2, 10224914), (4, 5112457), (7, 2921404), (14, 1460702), (28, 730351), (263, 77756), (526, 38878), (1052, 19439), (1841, 11108), (2777, 7364), (3682, 5554)]