20191990213

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{561997}}^1$

素因数の和:562108

約数の個数: 16

約数和(自身を含む): 22300080640

約数和(自身を除く): 2108090427

約数列:

[1, 19, 31, 61, 589, 1159, 1891, 35929, 561997, 10677943, 17421907, 34281817, 331016233, 651354523, 1062736327, 20191990213]

約数ペア:

[(1, 20191990213), (19, 1062736327), (31, 651354523), (61, 331016233), (589, 34281817), (1159, 17421907), (1891, 10677943), (35929, 561997)]