1009989

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:386

約数の個数: 20

約数和(自身を含む): 1554124

約数和(自身を除く): 544135

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 337, 999, 1011, 2997, 3033, 9099, 12469, 27297, 37407, 112221, 336663, 1009989]

約数ペア:

[(1, 1009989), (3, 336663), (9, 112221), (27, 37407), (37, 27297), (81, 12469), (111, 9099), (333, 3033), (337, 2997), (999, 1011)]