7981011

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{2663}}^1$

素因数の和:2712

約数の個数: 20

約数和(自身を含む): 12249072

約数和(自身を除く): 4268061

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2663, 2997, 7989, 23967, 71901, 98531, 215703, 295593, 886779, 2660337, 7981011]

約数ペア:

[(1, 7981011), (3, 2660337), (9, 886779), (27, 295593), (37, 215703), (81, 98531), (111, 71901), (333, 23967), (999, 7989), (2663, 2997)]