20809987233

素因数分解:

$3^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{1374413}}^1$

素因数の和:1374533

約数の個数: 24

約数和(自身を含む): 32590104768

約数和(自身を除く): 11780117535

約数列:

[1, 3, 7, 21, 49, 103, 147, 309, 721, 2163, 5047, 15141, 1374413, 4123239, 9620891, 28862673, 67346237, 141564539, 202038711, 424693617, 990951773, 2972855319, 6936662411, 20809987233]

約数ペア:

[(1, 20809987233), (3, 6936662411), (7, 2972855319), (21, 990951773), (49, 424693617), (103, 202038711), (147, 141564539), (309, 67346237), (721, 28862673), (2163, 9620891), (5047, 4123239), (15141, 1374413)]