18180873

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{431}}^1$

素因数の和:589

約数の個数: 24

約数和(自身を含む): 27181440

約数和(自身を除く): 9000567

約数列:

[1, 3, 9, 43, 109, 129, 327, 387, 431, 981, 1293, 3879, 4687, 14061, 18533, 42183, 46979, 55599, 140937, 166797, 422811, 2020097, 6060291, 18180873]

約数ペア:

[(1, 18180873), (3, 6060291), (9, 2020097), (43, 422811), (109, 166797), (129, 140937), (327, 55599), (387, 46979), (431, 42183), (981, 18533), (1293, 14061), (3879, 4687)]