20437749

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{1117}}^1$

素因数の和:1249

約数の個数: 24

約数和(自身を含む): 31393440

約数和(自身を除く): 10955691

約数列:

[1, 3, 9, 19, 57, 107, 171, 321, 963, 1117, 2033, 3351, 6099, 10053, 18297, 21223, 63669, 119519, 191007, 358557, 1075671, 2270861, 6812583, 20437749]

約数ペア:

[(1, 20437749), (3, 6812583), (9, 2270861), (19, 1075671), (57, 358557), (107, 191007), (171, 119519), (321, 63669), (963, 21223), (1117, 18297), (2033, 10053), (3351, 6099)]