21611967

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{5179}}^1$

素因数の和:5302

約数の個数: 16

約数和(自身を含む): 31328640

約数和(自身を除く): 9716673

約数列:

[1, 3, 13, 39, 107, 321, 1391, 4173, 5179, 15537, 67327, 201981, 554153, 1662459, 7203989, 21611967]

約数ペア:

[(1, 21611967), (3, 7203989), (13, 1662459), (39, 554153), (107, 201981), (321, 67327), (1391, 15537), (4173, 5179)]