21212169

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{1451}}^1$

素因数の和:1908

約数の個数: 16

約数和(自身を含む): 30945024

約数和(自身を除く): 9732855

約数列:

[1, 3, 11, 33, 443, 1329, 1451, 4353, 4873, 14619, 15961, 47883, 642793, 1928379, 7070723, 21212169]

約数ペア:

[(1, 21212169), (3, 7070723), (11, 1928379), (33, 642793), (443, 47883), (1329, 15961), (1451, 14619), (4353, 4873)]