67947664

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{21557}}^1$

素因数の和:21762

約数の個数: 20

約数和(自身を含む): 132323004

約数和(自身を除く): 64375340

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 21557, 43114, 86228, 172456, 344912, 4246729, 8493458, 16986916, 33973832, 67947664]

約数ペア:

[(1, 67947664), (2, 33973832), (4, 16986916), (8, 8493458), (16, 4246729), (197, 344912), (394, 172456), (788, 86228), (1576, 43114), (3152, 21557)]