20747728

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{12119}}^1$

素因数の和:12234

約数の個数: 20

約数和(自身を含む): 40577760

約数和(自身を除く): 19830032

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 12119, 24238, 48476, 96952, 193904, 1296733, 2593466, 5186932, 10373864, 20747728]

約数ペア:

[(1, 20747728), (2, 10373864), (4, 5186932), (8, 2593466), (16, 1296733), (107, 193904), (214, 96952), (428, 48476), (856, 24238), (1712, 12119)]