212656892

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{399731}}^1$

素因数の和:399761

約数の個数: 24

約数和(自身を含む): 447699840

約数和(自身を除く): 235042948

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 399731, 799462, 1598924, 2798117, 5596234, 7594889, 11192468, 15189778, 30379556, 53164223, 106328446, 212656892]

約数ペア:

[(1, 212656892), (2, 106328446), (4, 53164223), (7, 30379556), (14, 15189778), (19, 11192468), (28, 7594889), (38, 5596234), (76, 2798117), (133, 1598924), (266, 799462), (532, 399731)]