639468598

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{122833}}^1$

素因数の和:122991

約数の個数: 16

約数和(自身を含む): 1017065520

約数和(自身を除く): 377596922

約数列:

[1, 2, 19, 38, 137, 274, 2603, 5206, 122833, 245666, 2333827, 4667654, 16828121, 33656242, 319734299, 639468598]

約数ペア:

[(1, 639468598), (2, 319734299), (19, 33656242), (38, 16828121), (137, 4667654), (274, 2333827), (2603, 245666), (5206, 122833)]