851685121

素因数分解:

$7^4\times {\mathrm{229}}^1\times {\mathrm{1549}}^1$

素因数の和:1806

約数の個数: 20

約数和(自身を含む): 998556500

約数和(自身を除く): 146871379

約数列:

[1, 7, 49, 229, 343, 1549, 1603, 2401, 10843, 11221, 75901, 78547, 354721, 531307, 549829, 2483047, 3719149, 17381329, 121669303, 851685121]

約数ペア:

[(1, 851685121), (7, 121669303), (49, 17381329), (229, 3719149), (343, 2483047), (1549, 549829), (1603, 531307), (2401, 354721), (10843, 78547), (11221, 75901)]