18718227

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2663}}^1$

素因数の和:2751

約数の個数: 24

約数和(自身を含む): 29922048

約数和(自身を除く): 11203821

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 2663, 7029, 7989, 23967, 29293, 87879, 189073, 263637, 567219, 1701657, 2079803, 6239409, 18718227]

約数ペア:

[(1, 18718227), (3, 6239409), (9, 2079803), (11, 1701657), (33, 567219), (71, 263637), (99, 189073), (213, 87879), (639, 29293), (781, 23967), (2343, 7989), (2663, 7029)]