1980495

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4001}}^1$

素因数の和:4023

約数の個数: 24

約数和(自身を含む): 3745872

約数和(自身を除く): 1765377

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 4001, 12003, 20005, 36009, 44011, 60015, 132033, 180045, 220055, 396099, 660165, 1980495]

約数ペア:

[(1, 1980495), (3, 660165), (5, 396099), (9, 220055), (11, 180045), (15, 132033), (33, 60015), (45, 44011), (55, 36009), (99, 20005), (165, 12003), (495, 4001)]