19997795

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1979}}^1$

素因数の和:2074

約数の個数: 16

約数和(自身を含む): 25090560

約数和(自身を除く): 5092765

約数列:

[1, 5, 43, 47, 215, 235, 1979, 2021, 9895, 10105, 85097, 93013, 425485, 465065, 3999559, 19997795]

約数ペア:

[(1, 19997795), (5, 3999559), (43, 465065), (47, 425485), (215, 93013), (235, 85097), (1979, 10105), (2021, 9895)]