18053119

素因数分解:

$7^4\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:204

約数の個数: 20

約数和(自身を含む): 21556496

約数和(自身を除く): 3503377

約数列:

[1, 7, 49, 73, 103, 343, 511, 721, 2401, 3577, 5047, 7519, 25039, 35329, 52633, 175273, 247303, 368431, 2579017, 18053119]

約数ペア:

[(1, 18053119), (7, 2579017), (49, 368431), (73, 247303), (103, 175273), (343, 52633), (511, 35329), (721, 25039), (2401, 7519), (3577, 5047)]