20778976

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{15101}}^1$

素因数の和:15154

約数の個数: 24

約数和(自身を含む): 41862744

約数和(自身を除く): 21083768

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 172, 344, 688, 1376, 15101, 30202, 60404, 120808, 241616, 483232, 649343, 1298686, 2597372, 5194744, 10389488, 20778976]

約数ペア:

[(1, 20778976), (2, 10389488), (4, 5194744), (8, 2597372), (16, 1298686), (32, 649343), (43, 483232), (86, 241616), (172, 120808), (344, 60404), (688, 30202), (1376, 15101)]