21018021299

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{27211}}^1$

素因数の和:27359

約数の個数: 32

約数和(自身を含む): 24827793408

約数和(自身を除く): 3809772109

約数列:

[1, 11, 23, 43, 71, 253, 473, 781, 989, 1633, 3053, 10879, 17963, 27211, 33583, 70219, 299321, 625853, 772409, 1170073, 1931981, 6884383, 12870803, 21251791, 26911679, 44435563, 83075183, 296028469, 488791193, 913827013, 1910729209, 21018021299]

約数ペア:

[(1, 21018021299), (11, 1910729209), (23, 913827013), (43, 488791193), (71, 296028469), (253, 83075183), (473, 44435563), (781, 26911679), (989, 21251791), (1633, 12870803), (3053, 6884383), (10879, 1931981), (17963, 1170073), (27211, 772409), (33583, 625853), (70219, 299321)]