19386945

素因数分解:

$3^4\times 5^1\times {\mathrm{47869}}^1$

素因数の和:47886

約数の個数: 20

約数和(自身を含む): 34753620

約数和(自身を除く): 15366675

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 47869, 143607, 239345, 430821, 718035, 1292463, 2154105, 3877389, 6462315, 19386945]

約数ペア:

[(1, 19386945), (3, 6462315), (5, 3877389), (9, 2154105), (15, 1292463), (27, 718035), (45, 430821), (81, 239345), (135, 143607), (405, 47869)]