21137644

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{20887}}^1$

素因数の和:20925

約数の個数: 24

約数和(自身を含む): 42110208

約数和(自身を除く): 20972564

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 1012, 20887, 41774, 83548, 229757, 459514, 480401, 919028, 960802, 1921604, 5284411, 10568822, 21137644]

約数ペア:

[(1, 21137644), (2, 10568822), (4, 5284411), (11, 1921604), (22, 960802), (23, 919028), (44, 480401), (46, 459514), (92, 229757), (253, 83548), (506, 41774), (1012, 20887)]