20956628

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{68041}}^1$

素因数の和:68063

約数の個数: 24

約数和(自身を含む): 45724224

約数和(自身を除く): 24767596

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 68041, 136082, 272164, 476287, 748451, 952574, 1496902, 1905148, 2993804, 5239157, 10478314, 20956628]

約数ペア:

[(1, 20956628), (2, 10478314), (4, 5239157), (7, 2993804), (11, 1905148), (14, 1496902), (22, 952574), (28, 748451), (44, 476287), (77, 272164), (154, 136082), (308, 68041)]