18194721

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{691}}^1$

素因数の和:892

約数の個数: 16

約数和(自身を含む): 24845568

約数和(自身を除く): 6650847

約数列:

[1, 3, 67, 131, 201, 393, 691, 2073, 8777, 26331, 46297, 90521, 138891, 271563, 6064907, 18194721]

約数ペア:

[(1, 18194721), (3, 6064907), (67, 271563), (131, 138891), (201, 90521), (393, 46297), (691, 26331), (2073, 8777)]