20669834

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{5281}}^1$

素因数の和:5405

約数の個数: 16

約数和(自身を含む): 32959680

約数和(自身を除く): 12289846

約数列:

[1, 2, 19, 38, 103, 206, 1957, 3914, 5281, 10562, 100339, 200678, 543943, 1087886, 10334917, 20669834]

約数ペア:

[(1, 20669834), (2, 10334917), (19, 1087886), (38, 543943), (103, 200678), (206, 100339), (1957, 10562), (3914, 5281)]