19138945

素因数分解:

$5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{5309}}^1$

素因数の和:5424

約数の個数: 16

約数和(自身を含む): 26507520

約数和(自身を除く): 7368575

約数列:

[1, 5, 7, 35, 103, 515, 721, 3605, 5309, 26545, 37163, 185815, 546827, 2734135, 3827789, 19138945]

約数ペア:

[(1, 19138945), (5, 3827789), (7, 2734135), (35, 546827), (103, 185815), (515, 37163), (721, 26545), (3605, 5309)]