21165529

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{8867}}^1$

素因数の和:8916

約数の個数: 16

約数和(自身を含む): 27242496

約数和(自身を除く): 6076967

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 8867, 62069, 97537, 274877, 682759, 1924139, 3023647, 21165529]

約数ペア:

[(1, 21165529), (7, 3023647), (11, 1924139), (31, 682759), (77, 274877), (217, 97537), (341, 62069), (2387, 8867)]