20305503

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{739}}^1$

素因数の和:859

約数の個数: 24

約数和(自身を含む): 30476160

約数和(自身を除く): 10170657

約数列:

[1, 3, 9, 43, 71, 129, 213, 387, 639, 739, 2217, 3053, 6651, 9159, 27477, 31777, 52469, 95331, 157407, 285993, 472221, 2256167, 6768501, 20305503]

約数ペア:

[(1, 20305503), (3, 6768501), (9, 2256167), (43, 472221), (71, 285993), (129, 157407), (213, 95331), (387, 52469), (639, 31777), (739, 27477), (2217, 9159), (3053, 6651)]