9099999

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:228

約数の個数: 32

約数和(自身を含む): 14100480

約数和(自身を除く): 5000481

約数列:

[1, 3, 9, 27, 47, 71, 101, 141, 213, 303, 423, 639, 909, 1269, 1917, 2727, 3337, 4747, 7171, 10011, 14241, 21513, 30033, 42723, 64539, 90099, 128169, 193617, 337037, 1011111, 3033333, 9099999]

約数ペア:

[(1, 9099999), (3, 3033333), (9, 1011111), (27, 337037), (47, 193617), (71, 128169), (101, 90099), (141, 64539), (213, 42723), (303, 30033), (423, 21513), (639, 14241), (909, 10011), (1269, 7171), (1917, 4747), (2727, 3337)]