2988009

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{997}}^1$

素因数の和:1046

約数の個数: 20

約数和(自身を含む): 4588804

約数和(自身を除く): 1600795

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 997, 999, 2991, 2997, 8973, 26919, 36889, 80757, 110667, 332001, 996003, 2988009]

約数ペア:

[(1, 2988009), (3, 996003), (9, 332001), (27, 110667), (37, 80757), (81, 36889), (111, 26919), (333, 8973), (997, 2997), (999, 2991)]