20403669

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{239}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 32256000

約数和(自身を除く): 11852331

約数列:

[1, 3, 11, 13, 33, 39, 143, 199, 239, 429, 597, 717, 2189, 2587, 2629, 3107, 6567, 7761, 7887, 9321, 28457, 34177, 47561, 85371, 102531, 142683, 523171, 618293, 1569513, 1854879, 6801223, 20403669]

約数ペア:

[(1, 20403669), (3, 6801223), (11, 1854879), (13, 1569513), (33, 618293), (39, 523171), (143, 142683), (199, 102531), (239, 85371), (429, 47561), (597, 34177), (717, 28457), (2189, 9321), (2587, 7887), (2629, 7761), (3107, 6567)]