21000307097

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{1789}}^1\times {\mathrm{13859}}^1$

素因数の和:15677

約数の個数: 24

約数和(自身を含む): 26397201600

約数和(自身を除く): 5396894503

約数列:

[1, 7, 11, 77, 121, 847, 1789, 12523, 13859, 19679, 97013, 137753, 152449, 216469, 1067143, 1515283, 1676939, 11738573, 24793751, 173556257, 272731261, 1909118827, 3000043871, 21000307097]

約数ペア:

[(1, 21000307097), (7, 3000043871), (11, 1909118827), (77, 272731261), (121, 173556257), (847, 24793751), (1789, 11738573), (12523, 1676939), (13859, 1515283), (19679, 1067143), (97013, 216469), (137753, 152449)]