20965263

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{11987}}^1$

素因数の和:12054

約数の個数: 16

約数和(自身を含む): 31072896

約数和(自身を除く): 10107633

約数列:

[1, 3, 11, 33, 53, 159, 583, 1749, 11987, 35961, 131857, 395571, 635311, 1905933, 6988421, 20965263]

約数ペア:

[(1, 20965263), (3, 6988421), (11, 1905933), (33, 635311), (53, 395571), (159, 131857), (583, 35961), (1749, 11987)]