18921859

素因数分解:

${\mathrm{11}}^2\times {\mathrm{353}}^1\times {\mathrm{443}}^1$

素因数の和:818

約数の個数: 12

約数和(自身を含む): 20904408

約数和(自身を除く): 1982549

約数列:

[1, 11, 121, 353, 443, 3883, 4873, 42713, 53603, 156379, 1720169, 18921859]

約数ペア:

[(1, 18921859), (11, 1720169), (121, 156379), (353, 53603), (443, 42713), (3883, 4873)]