266804928019

素因数分解:

$7^4\times {\mathrm{61}}^1\times {\mathrm{1821679}}^1$

素因数の和:1821768

約数の個数: 20

約数和(自身を含む): 316356592160

約数和(自身を除く): 49551664141

約数列:

[1, 7, 49, 61, 343, 427, 2401, 2989, 20923, 146461, 1821679, 12751753, 89262271, 111122419, 624835897, 777856933, 4373851279, 5444998531, 38114989717, 266804928019]

約数ペア:

[(1, 266804928019), (7, 38114989717), (49, 5444998531), (61, 4373851279), (343, 777856933), (427, 624835897), (2401, 111122419), (2989, 89262271), (20923, 12751753), (146461, 1821679)]