18514467

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{431}}^1$

素因数の和:520

約数の個数: 32

約数和(自身を含む): 28892160

約数和(自身を除く): 10377693

約数列:

[1, 3, 9, 27, 37, 43, 111, 129, 333, 387, 431, 999, 1161, 1293, 1591, 3879, 4773, 11637, 14319, 15947, 18533, 42957, 47841, 55599, 143523, 166797, 430569, 500391, 685721, 2057163, 6171489, 18514467]

約数ペア:

[(1, 18514467), (3, 6171489), (9, 2057163), (27, 685721), (37, 500391), (43, 430569), (111, 166797), (129, 143523), (333, 55599), (387, 47841), (431, 42957), (999, 18533), (1161, 15947), (1293, 14319), (1591, 11637), (3879, 4773)]