2440008081

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{545497}}^1$

素因数の和:545581

約数の個数: 24

約数和(自身を含む): 4084689024

約数和(自身を除く): 1644680943

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 545497, 1636491, 3818479, 4909473, 11455437, 34366311, 38730287, 116190861, 271112009, 348572583, 813336027, 2440008081]

約数ペア:

[(1, 2440008081), (3, 813336027), (7, 348572583), (9, 271112009), (21, 116190861), (63, 38730287), (71, 34366311), (213, 11455437), (497, 4909473), (639, 3818479), (1491, 1636491), (4473, 545497)]