19705766

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{1901}}^1$

素因数の和:2047

約数の個数: 16

約数和(自身を含む): 30401568

約数和(自身を除く): 10695802

約数列:

[1, 2, 71, 73, 142, 146, 1901, 3802, 5183, 10366, 134971, 138773, 269942, 277546, 9852883, 19705766]

約数ペア:

[(1, 19705766), (2, 9852883), (71, 277546), (73, 269942), (142, 138773), (146, 134971), (1901, 10366), (3802, 5183)]