12640263

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{2153}}^1$

素因数の和:2278

約数の個数: 16

約数和(自身を含む): 17921280

約数和(自身を除く): 5281017

約数列:

[1, 3, 19, 57, 103, 309, 1957, 2153, 5871, 6459, 40907, 122721, 221759, 665277, 4213421, 12640263]

約数ペア:

[(1, 12640263), (3, 4213421), (19, 665277), (57, 221759), (103, 122721), (309, 40907), (1957, 6459), (2153, 5871)]