21969685

素因数分解:

$5^1\times {\mathrm{83}}^1\times {\mathrm{167}}^1\times {\mathrm{317}}^1$

素因数の和:572

約数の個数: 16

約数和(自身を含む): 26925696

約数和(自身を除く): 4956011

約数列:

[1, 5, 83, 167, 317, 415, 835, 1585, 13861, 26311, 52939, 69305, 131555, 264695, 4393937, 21969685]

約数ペア:

[(1, 21969685), (5, 4393937), (83, 264695), (167, 131555), (317, 69305), (415, 52939), (835, 26311), (1585, 13861)]