20691495

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41801}}^1$

素因数の和:41823

約数の個数: 24

約数和(自身を含む): 39126672

約数和(自身を除く): 18435177

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 41801, 125403, 209005, 376209, 459811, 627015, 1379433, 1881045, 2299055, 4138299, 6897165, 20691495]

約数ペア:

[(1, 20691495), (3, 6897165), (5, 4138299), (9, 2299055), (11, 1881045), (15, 1379433), (33, 627015), (45, 459811), (55, 376209), (99, 209005), (165, 125403), (495, 41801)]