19739468819

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{642791}}^1$

素因数の和:642946

約数の個数: 16

約数和(自身を含む): 23325636096

約数和(自身を除く): 3586167277

約数列:

[1, 7, 41, 107, 287, 749, 4387, 30709, 642791, 4499537, 26354431, 68778637, 184481017, 481450459, 2819924117, 19739468819]

約数ペア:

[(1, 19739468819), (7, 2819924117), (41, 481450459), (107, 184481017), (287, 68778637), (749, 26354431), (4387, 4499537), (30709, 642791)]