19720912

素因数分解:

$2^4\times {\mathrm{1069}}^1\times {\mathrm{1153}}^1$

素因数の和:2230

約数の個数: 20

約数和(自身を含む): 38278180

約数和(自身を除く): 18557268

約数列:

[1, 2, 4, 8, 16, 1069, 1153, 2138, 2306, 4276, 4612, 8552, 9224, 17104, 18448, 1232557, 2465114, 4930228, 9860456, 19720912]

約数ペア:

[(1, 19720912), (2, 9860456), (4, 4930228), (8, 2465114), (16, 1232557), (1069, 18448), (1153, 17104), (2138, 9224), (2306, 8552), (4276, 4612)]