21090797

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{1021}}^1$

素因数の和:1268

約数の個数: 16

約数和(自身を含む): 26097792

約数和(自身を除く): 5006995

約数列:

[1, 7, 13, 91, 227, 1021, 1589, 2951, 7147, 13273, 20657, 92911, 231767, 1622369, 3012971, 21090797]

約数ペア:

[(1, 21090797), (7, 3012971), (13, 1622369), (91, 231767), (227, 92911), (1021, 20657), (1589, 13273), (2951, 7147)]