19994553

素因数分解:

$3^3\times {\mathrm{421}}^1\times {\mathrm{1759}}^1$

素因数の和:2189

約数の個数: 16

約数和(自身を含む): 29708800

約数和(自身を除く): 9714247

約数列:

[1, 3, 9, 27, 421, 1263, 1759, 3789, 5277, 11367, 15831, 47493, 740539, 2221617, 6664851, 19994553]

約数ペア:

[(1, 19994553), (3, 6664851), (9, 2221617), (27, 740539), (421, 47493), (1263, 15831), (1759, 11367), (3789, 5277)]