19787943

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{7193}}^1$

素因数の和:7334

約数の個数: 16

約数和(自身を含む): 30387456

約数和(自身を除く): 10599513

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 7193, 21579, 50351, 151053, 942283, 2826849, 6595981, 19787943]

約数ペア:

[(1, 19787943), (3, 6595981), (7, 2826849), (21, 942283), (131, 151053), (393, 50351), (917, 21579), (2751, 7193)]