19703998

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{2161}}^1$

素因数の和:2307

約数の個数: 16

約数和(自身を含む): 30510144

約数和(自身を除く): 10806146

約数列:

[1, 2, 47, 94, 97, 194, 2161, 4322, 4559, 9118, 101567, 203134, 209617, 419234, 9851999, 19703998]

約数ペア:

[(1, 19703998), (2, 9851999), (47, 419234), (94, 209617), (97, 203134), (194, 101567), (2161, 9118), (4322, 4559)]