20925212

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67939}}^1$

素因数の和:67961

約数の個数: 24

約数和(自身を含む): 45655680

約数和(自身を除く): 24730468

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 67939, 135878, 271756, 475573, 747329, 951146, 1494658, 1902292, 2989316, 5231303, 10462606, 20925212]

約数ペア:

[(1, 20925212), (2, 10462606), (4, 5231303), (7, 2989316), (11, 1902292), (14, 1494658), (22, 951146), (28, 747329), (44, 475573), (77, 271756), (154, 135878), (308, 67939)]