20138795

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^2$

素因数の和:211

約数の個数: 24

約数和(自身を含む): 26505792

約数和(自身を除く): 6366997

約数列:

[1, 5, 17, 47, 71, 85, 235, 355, 799, 1207, 3337, 3995, 5041, 6035, 16685, 25205, 56729, 85697, 236927, 283645, 428485, 1184635, 4027759, 20138795]

約数ペア:

[(1, 20138795), (5, 4027759), (17, 1184635), (47, 428485), (71, 283645), (85, 236927), (235, 85697), (355, 56729), (799, 25205), (1207, 16685), (3337, 6035), (3995, 5041)]