25805978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{2389}}^1$

素因数の和:2893

約数の個数: 16

約数和(自身を含む): 42331680

約数和(自身を除く): 16525702

約数列:

[1, 2, 11, 22, 491, 982, 2389, 4778, 5401, 10802, 26279, 52558, 1172999, 2345998, 12902989, 25805978]

約数ペア:

[(1, 25805978), (2, 12902989), (11, 2345998), (22, 1172999), (491, 52558), (982, 26279), (2389, 10802), (4778, 5401)]