20013381

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{887}}^1$

素因数の和:1025

約数の個数: 24

約数和(自身を含む): 30476160

約数和(自身を除く): 10462779

約数列:

[1, 3, 9, 23, 69, 109, 207, 327, 887, 981, 2507, 2661, 7521, 7983, 20401, 22563, 61203, 96683, 183609, 290049, 870147, 2223709, 6671127, 20013381]

約数ペア:

[(1, 20013381), (3, 6671127), (9, 2223709), (23, 870147), (69, 290049), (109, 183609), (207, 96683), (327, 61203), (887, 22563), (981, 20401), (2507, 7983), (2661, 7521)]