20620556

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{661}}^1\times {\mathrm{709}}^1$

素因数の和:1385

約数の個数: 24

約数和(自身を含む): 39481680

約数和(自身を除く): 18861124

約数列:

[1, 2, 4, 11, 22, 44, 661, 709, 1322, 1418, 2644, 2836, 7271, 7799, 14542, 15598, 29084, 31196, 468649, 937298, 1874596, 5155139, 10310278, 20620556]

約数ペア:

[(1, 20620556), (2, 10310278), (4, 5155139), (11, 1874596), (22, 937298), (44, 468649), (661, 31196), (709, 29084), (1322, 15598), (1418, 14542), (2644, 7799), (2836, 7271)]