20561604

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{244781}}^1$

素因数の和:244795

約数の個数: 24

約数和(自身を含む): 54831168

約数和(自身を除く): 34269564

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 244781, 489562, 734343, 979124, 1468686, 1713467, 2937372, 3426934, 5140401, 6853868, 10280802, 20561604]

約数ペア:

[(1, 20561604), (2, 10280802), (3, 6853868), (4, 5140401), (6, 3426934), (7, 2937372), (12, 1713467), (14, 1468686), (21, 979124), (28, 734343), (42, 489562), (84, 244781)]