21585916

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{103}}^1\times {\mathrm{433}}^1$

素因数の和:562

約数の個数: 36

約数和(自身を含む): 42021616

約数和(自身を除く): 20435700

約数列:

[1, 2, 4, 11, 22, 44, 103, 121, 206, 242, 412, 433, 484, 866, 1133, 1732, 2266, 4532, 4763, 9526, 12463, 19052, 24926, 44599, 49852, 52393, 89198, 104786, 178396, 209572, 490589, 981178, 1962356, 5396479, 10792958, 21585916]

約数ペア:

[(1, 21585916), (2, 10792958), (4, 5396479), (11, 1962356), (22, 981178), (44, 490589), (103, 209572), (121, 178396), (206, 104786), (242, 89198), (412, 52393), (433, 49852), (484, 44599), (866, 24926), (1133, 19052), (1732, 12463), (2266, 9526), (4532, 4763)]