1389723727

素因数分解:

$7^1\times {\mathrm{431}}^1\times {\mathrm{599}}^1\times {\mathrm{769}}^1$

素因数の和:1806

約数の個数: 16

約数和(自身を含む): 1596672000

約数和(自身を除く): 206948273

約数列:

[1, 7, 431, 599, 769, 3017, 4193, 5383, 258169, 331439, 460631, 1807183, 2320073, 3224417, 198531961, 1389723727]

約数ペア:

[(1, 1389723727), (7, 198531961), (431, 3224417), (599, 2320073), (769, 1807183), (3017, 460631), (4193, 331439), (5383, 258169)]