21082085

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{283}}^1\times {\mathrm{317}}^1$

素因数の和:652

約数の個数: 16

約数和(自身を含む): 26009856

約数和(自身を除く): 4927771

約数列:

[1, 5, 47, 235, 283, 317, 1415, 1585, 13301, 14899, 66505, 74495, 89711, 448555, 4216417, 21082085]

約数ペア:

[(1, 21082085), (5, 4216417), (47, 448555), (235, 89711), (283, 74495), (317, 66505), (1415, 14899), (1585, 13301)]