163900961

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{337}}^1$

素因数の和:489

約数の個数: 32

約数和(自身を含む): 205201152

約数和(自身を除く): 41300191

約数列:

[1, 7, 17, 61, 67, 119, 337, 427, 469, 1037, 1139, 2359, 4087, 5729, 7259, 7973, 20557, 22579, 28609, 40103, 69479, 143899, 158053, 349469, 383843, 486353, 1377319, 2446283, 2686901, 9641233, 23414423, 163900961]

約数ペア:

[(1, 163900961), (7, 23414423), (17, 9641233), (61, 2686901), (67, 2446283), (119, 1377319), (337, 486353), (427, 383843), (469, 349469), (1037, 158053), (1139, 143899), (2359, 69479), (4087, 40103), (5729, 28609), (7259, 22579), (7973, 20557)]