1980207

素因数分解:

$3^5\times {\mathrm{29}}^1\times {\mathrm{281}}^1$

素因数の和:325

約数の個数: 24

約数和(自身を含む): 3079440

約数和(自身を除く): 1099233

約数列:

[1, 3, 9, 27, 29, 81, 87, 243, 261, 281, 783, 843, 2349, 2529, 7047, 7587, 8149, 22761, 24447, 68283, 73341, 220023, 660069, 1980207]

約数ペア:

[(1, 1980207), (3, 660069), (9, 220023), (27, 73341), (29, 68283), (81, 24447), (87, 22761), (243, 8149), (261, 7587), (281, 7047), (783, 2529), (843, 2349)]