18966987

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{54037}}^1$

素因数の和:54059

約数の個数: 16

約数和(自身を含む): 30261280

約数和(自身を除く): 11294293

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 54037, 162111, 486333, 702481, 1458999, 2107443, 6322329, 18966987]

約数ペア:

[(1, 18966987), (3, 6322329), (9, 2107443), (13, 1458999), (27, 702481), (39, 486333), (117, 162111), (351, 54037)]