21567788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{4759}}^1$

素因数の和:4877

約数の個数: 24

約数和(自身を含む): 41583360

約数和(自身を除く): 20015572

約数列:

[1, 2, 4, 11, 22, 44, 103, 206, 412, 1133, 2266, 4532, 4759, 9518, 19036, 52349, 104698, 209396, 490177, 980354, 1960708, 5391947, 10783894, 21567788]

約数ペア:

[(1, 21567788), (2, 10783894), (4, 5391947), (11, 1960708), (22, 980354), (44, 490177), (103, 209396), (206, 104698), (412, 52349), (1133, 19036), (2266, 9518), (4532, 4759)]