19853889

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{3691}}^1$

素因数の和:3868

約数の個数: 16

約数和(自身を含む): 29063424

約数和(自身を除く): 9209535

約数列:

[1, 3, 11, 33, 163, 489, 1793, 3691, 5379, 11073, 40601, 121803, 601633, 1804899, 6617963, 19853889]

約数ペア:

[(1, 19853889), (3, 6617963), (11, 1804899), (33, 601633), (163, 121803), (489, 40601), (1793, 11073), (3691, 5379)]