19529965721

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{321169}}^1$

素因数の和:321273

約数の個数: 24

約数和(自身を含む): 24384511080

約数和(自身を除く): 4854545359

約数列:

[1, 7, 17, 49, 73, 119, 511, 833, 1241, 3577, 8687, 60809, 321169, 2248183, 5459873, 15737281, 23445337, 38219111, 164117359, 267533777, 398570729, 1148821513, 2789995103, 19529965721]

約数ペア:

[(1, 19529965721), (7, 2789995103), (17, 1148821513), (49, 398570729), (73, 267533777), (119, 164117359), (511, 38219111), (833, 23445337), (1241, 15737281), (3577, 5459873), (8687, 2248183), (60809, 321169)]