21427471

素因数分解:

${\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{337}}^1$

素因数の和:490

約数の個数: 16

約数和(自身を含む): 23811424

約数和(自身を除く): 2383953

約数列:

[1, 13, 67, 73, 337, 871, 949, 4381, 4891, 22579, 24601, 63583, 293527, 319813, 1648267, 21427471]

約数ペア:

[(1, 21427471), (13, 1648267), (67, 319813), (73, 293527), (337, 63583), (871, 24601), (949, 22579), (4381, 4891)]