19851175

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{181}}^1$

素因数の和:339

約数の個数: 24

約数和(自身を含む): 25592112

約数和(自身を除く): 5740937

約数列:

[1, 5, 25, 41, 107, 181, 205, 535, 905, 1025, 2675, 4387, 4525, 7421, 19367, 21935, 37105, 96835, 109675, 185525, 484175, 794047, 3970235, 19851175]

約数ペア:

[(1, 19851175), (5, 3970235), (25, 794047), (41, 484175), (107, 185525), (181, 109675), (205, 96835), (535, 37105), (905, 21935), (1025, 19367), (2675, 7421), (4387, 4525)]