1991286721

素因数分解:

${\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{389}}^1\times {\mathrm{2371}}^1$

素因数の和:2904

約数の個数: 16

約数和(自身を含む): 2131384320

約数和(自身を除く): 140097599

約数列:

[1, 17, 127, 389, 2159, 2371, 6613, 40307, 49403, 301117, 839851, 922319, 5118989, 15679423, 117134513, 1991286721]

約数ペア:

[(1, 1991286721), (17, 117134513), (127, 15679423), (389, 5118989), (2159, 922319), (2371, 839851), (6613, 301117), (40307, 49403)]