20927643

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:295

約数の個数: 32

約数和(自身を含む): 31629312

約数和(自身を除く): 10701669

約数列:

[1, 3, 11, 33, 47, 103, 131, 141, 309, 393, 517, 1133, 1441, 1551, 3399, 4323, 4841, 6157, 13493, 14523, 18471, 40479, 53251, 67727, 148423, 159753, 203181, 445269, 634171, 1902513, 6975881, 20927643]

約数ペア:

[(1, 20927643), (3, 6975881), (11, 1902513), (33, 634171), (47, 445269), (103, 203181), (131, 159753), (141, 148423), (309, 67727), (393, 53251), (517, 40479), (1133, 18471), (1441, 14523), (1551, 13493), (3399, 6157), (4323, 4841)]