19889177

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{6007}}^1$

素因数の和:6068

約数の個数: 16

約数和(自身を含む): 25377792

約数和(自身を除く): 5488615

約数列:

[1, 7, 11, 43, 77, 301, 473, 3311, 6007, 42049, 66077, 258301, 462539, 1808107, 2841311, 19889177]

約数ペア:

[(1, 19889177), (7, 2841311), (11, 1808107), (43, 462539), (77, 258301), (301, 66077), (473, 42049), (3311, 6007)]