20884297

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{613}}^1$

素因数の和:808

約数の個数: 16

約数和(自身を含む): 24835072

約数和(自身を除く): 3950775

約数列:

[1, 7, 31, 157, 217, 613, 1099, 4291, 4867, 19003, 34069, 96241, 133021, 673687, 2983471, 20884297]

約数ペア:

[(1, 20884297), (7, 2983471), (31, 673687), (157, 133021), (217, 96241), (613, 34069), (1099, 19003), (4291, 4867)]