28700221

素因数分解:

${\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1291}}^1$

素因数の和:1392

約数の個数: 16

約数和(自身を含む): 32744448

約数和(自身を除く): 4044227

約数列:

[1, 11, 43, 47, 473, 517, 1291, 2021, 14201, 22231, 55513, 60677, 610643, 667447, 2609111, 28700221]

約数ペア:

[(1, 28700221), (11, 2609111), (43, 667447), (47, 610643), (473, 60677), (517, 55513), (1291, 22231), (2021, 14201)]