21006987198

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{81422431}}^1$

素因数の和:81422479

約数の個数: 16

約数和(自身を含む): 42991044096

約数和(自身を除く): 21984056898

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 81422431, 162844862, 244267293, 488534586, 3501164533, 7002329066, 10503493599, 21006987198]

約数ペア:

[(1, 21006987198), (2, 10503493599), (3, 7002329066), (6, 3501164533), (43, 488534586), (86, 244267293), (129, 162844862), (258, 81422431)]