2116728621

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{781369}}^1$

素因数の和:781425

約数の個数: 24

約数和(自身を含む): 3575549120

約数和(自身を除く): 1458820499

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 781369, 2344107, 5469583, 7032321, 16408749, 33598867, 49226247, 100796601, 235192069, 302389803, 705576207, 2116728621]

約数ペア:

[(1, 2116728621), (3, 705576207), (7, 302389803), (9, 235192069), (21, 100796601), (43, 49226247), (63, 33598867), (129, 16408749), (301, 7032321), (387, 5469583), (903, 2344107), (2709, 781369)]