1657642887

素因数分解:

$3^4\times {\mathrm{4481}}^1\times {\mathrm{4567}}^1$

素因数の和:9060

約数の個数: 20

約数和(自身を含む): 2477326896

約数和(自身を除く): 819684009

約数列:

[1, 3, 9, 27, 81, 4481, 4567, 13443, 13701, 40329, 41103, 120987, 123309, 362961, 369927, 20464727, 61394181, 184182543, 552547629, 1657642887]

約数ペア:

[(1, 1657642887), (3, 552547629), (9, 184182543), (27, 61394181), (81, 20464727), (4481, 369927), (4567, 362961), (13443, 123309), (13701, 120987), (40329, 41103)]