1997899721

素因数分解:

${\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{397}}^1\times {\mathrm{761}}^1$

素因数の和:1564

約数の個数: 16

約数和(自身を含む): 2128997520

約数和(自身を除く): 131097799

約数列:

[1, 17, 389, 397, 761, 6613, 6749, 12937, 154433, 296029, 302117, 2625361, 5032493, 5135989, 117523513, 1997899721]

約数ペア:

[(1, 1997899721), (17, 117523513), (389, 5135989), (397, 5032493), (761, 2625361), (6613, 302117), (6749, 296029), (12937, 154433)]