19959993

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{12119}}^1$

素因数の和:12189

約数の個数: 16

約数和(自身を含む): 30057600

約数和(自身を除く): 10097607

約数列:

[1, 3, 9, 27, 61, 183, 549, 1647, 12119, 36357, 109071, 327213, 739259, 2217777, 6653331, 19959993]

約数ペア:

[(1, 19959993), (3, 6653331), (9, 2217777), (27, 739259), (61, 327213), (183, 109071), (549, 36357), (1647, 12119)]