18722259

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{6247}}^1$

素因数の和:6296

約数の個数: 20

約数和(自身を含む): 28728304

約数和(自身を除く): 10006045

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2997, 6247, 18741, 56223, 168669, 231139, 506007, 693417, 2080251, 6240753, 18722259]

約数ペア:

[(1, 18722259), (3, 6240753), (9, 2080251), (27, 693417), (37, 506007), (81, 231139), (111, 168669), (333, 56223), (999, 18741), (2997, 6247)]