21099879

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{21121}}^1$

素因数の和:21167

約数の個数: 16

約数和(自身を含む): 32105440

約数和(自身を除く): 11005561

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 21121, 63363, 190089, 570267, 781477, 2344431, 7033293, 21099879]

約数ペア:

[(1, 21099879), (3, 7033293), (9, 2344431), (27, 781477), (37, 570267), (111, 190089), (333, 63363), (999, 21121)]