20887588

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{2551}}^1$

素因数の和:2667

約数の個数: 24

約数和(自身を含む): 38586240

約数和(自身を除く): 17698652

約数列:

[1, 2, 4, 23, 46, 89, 92, 178, 356, 2047, 2551, 4094, 5102, 8188, 10204, 58673, 117346, 227039, 234692, 454078, 908156, 5221897, 10443794, 20887588]

約数ペア:

[(1, 20887588), (2, 10443794), (4, 5221897), (23, 908156), (46, 454078), (89, 234692), (92, 227039), (178, 117346), (356, 58673), (2047, 10204), (2551, 8188), (4094, 5102)]