20858992

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16931}}^1$

素因数の和:16957

約数の個数: 40

約数和(自身を含む): 50389632

約数和(自身を除く): 29530640

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 16931, 33862, 67724, 118517, 135448, 186241, 237034, 270896, 372482, 474068, 744964, 948136, 1303687, 1489928, 1896272, 2607374, 2979856, 5214748, 10429496, 20858992]

約数ペア:

[(1, 20858992), (2, 10429496), (4, 5214748), (7, 2979856), (8, 2607374), (11, 1896272), (14, 1489928), (16, 1303687), (22, 948136), (28, 744964), (44, 474068), (56, 372482), (77, 270896), (88, 237034), (112, 186241), (154, 135448), (176, 118517), (308, 67724), (616, 33862), (1232, 16931)]