18784737

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{13127}}^1$

素因数の和:13189

約数の個数: 16

約数和(自身を含む): 28356480

約数和(自身を除く): 9571743

約数列:

[1, 3, 9, 27, 53, 159, 477, 1431, 13127, 39381, 118143, 354429, 695731, 2087193, 6261579, 18784737]

約数ペア:

[(1, 18784737), (3, 6261579), (9, 2087193), (27, 695731), (53, 354429), (159, 118143), (477, 39381), (1431, 13127)]