21167156878

素因数分解:

$2^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{6779999}}^1$

素因数の和:6780231

約数の個数: 16

約数和(自身を含む): 36449280000

約数和(自身を除く): 15282123122

約数列:

[1, 2, 7, 14, 223, 446, 1561, 3122, 6779999, 13559998, 47459993, 94919986, 1511939777, 3023879554, 10583578439, 21167156878]

約数ペア:

[(1, 21167156878), (2, 10583578439), (7, 3023879554), (14, 1511939777), (223, 94919986), (446, 47459993), (1561, 13559998), (3122, 6779999)]