638866658

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{421}}^1\times {\mathrm{6961}}^1$

素因数の和:7493

約数の個数: 16

約数和(自身を含む): 969528120

約数和(自身を除く): 330661462

約数列:

[1, 2, 109, 218, 421, 842, 6961, 13922, 45889, 91778, 758749, 1517498, 2930581, 5861162, 319433329, 638866658]

約数ペア:

[(1, 638866658), (2, 319433329), (109, 5861162), (218, 2930581), (421, 1517498), (842, 758749), (6961, 91778), (13922, 45889)]