1320199479

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{440507}}^1$

素因数の和:440556

約数の個数: 20

約数和(自身を含む): 2025455784

約数和(自身を除く): 705256305

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2997, 440507, 1321521, 3964563, 11893689, 16298759, 35681067, 48896277, 146688831, 440066493, 1320199479]

約数ペア:

[(1, 1320199479), (3, 440066493), (9, 146688831), (27, 48896277), (37, 35681067), (81, 16298759), (111, 11893689), (333, 3964563), (999, 1321521), (2997, 440507)]