20816292

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{247813}}^1$

素因数の和:247827

約数の個数: 24

約数和(自身を含む): 55510336

約数和(自身を除く): 34694044

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 247813, 495626, 743439, 991252, 1486878, 1734691, 2973756, 3469382, 5204073, 6938764, 10408146, 20816292]

約数ペア:

[(1, 20816292), (2, 10408146), (3, 6938764), (4, 5204073), (6, 3469382), (7, 2973756), (12, 1734691), (14, 1486878), (21, 991252), (28, 743439), (42, 495626), (84, 247813)]