20189871

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{593}}^1$

素因数の和:712

約数の個数: 32

約数和(自身を含む): 32598720

約数和(自身を除く): 12408849

約数列:

[1, 3, 9, 13, 27, 39, 97, 117, 291, 351, 593, 873, 1261, 1779, 2619, 3783, 5337, 7709, 11349, 16011, 23127, 34047, 57521, 69381, 172563, 208143, 517689, 747773, 1553067, 2243319, 6729957, 20189871]

約数ペア:

[(1, 20189871), (3, 6729957), (9, 2243319), (13, 1553067), (27, 747773), (39, 517689), (97, 208143), (117, 172563), (291, 69381), (351, 57521), (593, 34047), (873, 23127), (1261, 16011), (1779, 11349), (2619, 7709), (3783, 5337)]