21553588

素因数分解:

$2^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{4903}}^1$

素因数の和:5071

約数の個数: 24

約数和(自身を含む): 43390592

約数和(自身を除く): 21837004

約数列:

[1, 2, 4, 7, 14, 28, 157, 314, 628, 1099, 2198, 4396, 4903, 9806, 19612, 34321, 68642, 137284, 769771, 1539542, 3079084, 5388397, 10776794, 21553588]

約数ペア:

[(1, 21553588), (2, 10776794), (4, 5388397), (7, 3079084), (14, 1539542), (28, 769771), (157, 137284), (314, 68642), (628, 34321), (1099, 19612), (2198, 9806), (4396, 4903)]