21713923

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{3863}}^1$

素因数の和:3954

約数の個数: 16

約数和(自身を含む): 27449856

約数和(自身を除く): 5735933

約数列:

[1, 7, 11, 73, 77, 511, 803, 3863, 5621, 27041, 42493, 281999, 297451, 1973993, 3101989, 21713923]

約数ペア:

[(1, 21713923), (7, 3101989), (11, 1973993), (73, 297451), (77, 281999), (511, 42493), (803, 27041), (3863, 5621)]