20658231

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2939}}^1$

素因数の和:3027

約数の個数: 24

約数和(自身を含む): 33022080

約数和(自身を除く): 12363849

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 2939, 7029, 8817, 26451, 32329, 96987, 208669, 290961, 626007, 1878021, 2295359, 6886077, 20658231]

約数ペア:

[(1, 20658231), (3, 6886077), (9, 2295359), (11, 1878021), (33, 626007), (71, 290961), (99, 208669), (213, 96987), (639, 32329), (781, 26451), (2343, 8817), (2939, 7029)]