21296572

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{1123}}^1$

素因数の和:1569

約数の個数: 24

約数和(自身を含む): 40787712

約数和(自身を除く): 19491140

約数列:

[1, 2, 4, 11, 22, 44, 431, 862, 1123, 1724, 2246, 4492, 4741, 9482, 12353, 18964, 24706, 49412, 484013, 968026, 1936052, 5324143, 10648286, 21296572]

約数ペア:

[(1, 21296572), (2, 10648286), (4, 5324143), (11, 1936052), (22, 968026), (44, 484013), (431, 49412), (862, 24706), (1123, 18964), (1724, 12353), (2246, 9482), (4492, 4741)]