19938867

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{2423}}^1$

素因数の和:2650

約数の個数: 16

約数和(自身を含む): 28777728

約数和(自身を除く): 8838861

約数列:

[1, 3, 13, 39, 211, 633, 2423, 2743, 7269, 8229, 31499, 94497, 511253, 1533759, 6646289, 19938867]

約数ペア:

[(1, 19938867), (3, 6646289), (13, 1533759), (39, 511253), (211, 94497), (633, 31499), (2423, 8229), (2743, 7269)]