639346946

素因数分解:

$2^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{145903}}^1$

素因数の和:146225

約数の個数: 16

約数和(自身を含む): 1099532544

約数和(自身を除く): 460185598

約数列:

[1, 2, 7, 14, 313, 626, 2191, 4382, 145903, 291806, 1021321, 2042642, 45667639, 91335278, 319673473, 639346946]

約数ペア:

[(1, 639346946), (2, 319673473), (7, 91335278), (14, 45667639), (313, 2042642), (626, 1021321), (2191, 291806), (4382, 145903)]