21045956

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{709}}^1$

素因数の和:935

約数の個数: 24

約数和(自身を含む): 37990680

約数和(自身を除く): 16944724

約数列:

[1, 2, 4, 41, 82, 164, 181, 362, 709, 724, 1418, 2836, 7421, 14842, 29069, 29684, 58138, 116276, 128329, 256658, 513316, 5261489, 10522978, 21045956]

約数ペア:

[(1, 21045956), (2, 10522978), (4, 5261489), (41, 513316), (82, 256658), (164, 128329), (181, 116276), (362, 58138), (709, 29684), (724, 29069), (1418, 14842), (2836, 7421)]