18998195

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{6451}}^1$

素因数の和:6506

約数の個数: 16

約数和(自身を含む): 24775680

約数和(自身を除く): 5777485

約数列:

[1, 5, 19, 31, 95, 155, 589, 2945, 6451, 32255, 122569, 199981, 612845, 999905, 3799639, 18998195]

約数ペア:

[(1, 18998195), (5, 3799639), (19, 999905), (31, 612845), (95, 199981), (155, 122569), (589, 32255), (2945, 6451)]