20918876

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{475429}}^1$

素因数の和:475444

約数の個数: 12

約数和(自身を含む): 39936120

約数和(自身を除く): 19017244

約数列:

[1, 2, 4, 11, 22, 44, 475429, 950858, 1901716, 5229719, 10459438, 20918876]

約数ペア:

[(1, 20918876), (2, 10459438), (4, 5229719), (11, 1901716), (22, 950858), (44, 475429)]