20772362009

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{115777}}^1$

素因数の和:115893

約数の個数: 24

約数和(自身を含む): 25408176768

約数和(自身を除く): 4635814759

約数列:

[1, 7, 19, 71, 133, 361, 497, 1349, 2527, 9443, 25631, 115777, 179417, 810439, 2199763, 8220167, 15398341, 41795497, 57541169, 156183173, 292568479, 1093282211, 2967480287, 20772362009]

約数ペア:

[(1, 20772362009), (7, 2967480287), (19, 1093282211), (71, 292568479), (133, 156183173), (361, 57541169), (497, 41795497), (1349, 15398341), (2527, 8220167), (9443, 2199763), (25631, 810439), (115777, 179417)]