20479907

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{739}}^1$

素因数の和:890

約数の個数: 16

約数和(自身を含む): 24295680

約数和(自身を除く): 3815773

約数列:

[1, 7, 37, 107, 259, 739, 749, 3959, 5173, 27343, 27713, 79073, 191401, 553511, 2925701, 20479907]

約数ペア:

[(1, 20479907), (7, 2925701), (37, 553511), (107, 191401), (259, 79073), (739, 27713), (749, 27343), (3959, 5173)]