21778017

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{277}}^1\times {\mathrm{359}}^1$

素因数の和:712

約数の個数: 16

約数和(自身を含む): 29623680

約数和(自身を除く): 7845663

約数列:

[1, 3, 73, 219, 277, 359, 831, 1077, 20221, 26207, 60663, 78621, 99443, 298329, 7259339, 21778017]

約数ペア:

[(1, 21778017), (3, 7259339), (73, 298329), (219, 99443), (277, 78621), (359, 60663), (831, 26207), (1077, 20221)]