20289148

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{9811}}^1$

素因数の和:9873

約数の個数: 24

約数和(自身を含む): 39561984

約数和(自身を除く): 19272836

約数列:

[1, 2, 4, 11, 22, 44, 47, 94, 188, 517, 1034, 2068, 9811, 19622, 39244, 107921, 215842, 431684, 461117, 922234, 1844468, 5072287, 10144574, 20289148]

約数ペア:

[(1, 20289148), (2, 10144574), (4, 5072287), (11, 1844468), (22, 922234), (44, 461117), (47, 431684), (94, 215842), (188, 107921), (517, 39244), (1034, 19622), (2068, 9811)]