21029351

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{1559}}^1$

素因数の和:1654

約数の個数: 16

約数和(自身を含む): 25159680

約数和(自身を除く): 4130329

約数列:

[1, 7, 41, 47, 287, 329, 1559, 1927, 10913, 13489, 63919, 73273, 447433, 512911, 3004193, 21029351]

約数ペア:

[(1, 21029351), (7, 3004193), (41, 512911), (47, 447433), (287, 73273), (329, 63919), (1559, 13489), (1927, 10913)]