21487004

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{69763}}^1$

素因数の和:69785

約数の個数: 24

約数和(自身を含む): 46881408

約数和(自身を除く): 25394404

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 69763, 139526, 279052, 488341, 767393, 976682, 1534786, 1953364, 3069572, 5371751, 10743502, 21487004]

約数ペア:

[(1, 21487004), (2, 10743502), (4, 5371751), (7, 3069572), (11, 1953364), (14, 1534786), (22, 976682), (28, 767393), (44, 488341), (77, 279052), (154, 139526), (308, 69763)]