28561881

素因数分解:

$3^1\times {\mathrm{31}}^2\times {\mathrm{9907}}^1$

素因数の和:9972

約数の個数: 12

約数和(自身を含む): 39354576

約数和(自身を除く): 10792695

約数列:

[1, 3, 31, 93, 961, 2883, 9907, 29721, 307117, 921351, 9520627, 28561881]

約数ペア:

[(1, 28561881), (3, 9520627), (31, 921351), (93, 307117), (961, 29721), (2883, 9907)]