20974563

素因数分解:

$3^2\times {\mathrm{137}}^1\times {\mathrm{17011}}^1$

素因数の和:17154

約数の個数: 12

約数和(自身を含む): 30519528

約数和(自身を除く): 9544965

約数列:

[1, 3, 9, 137, 411, 1233, 17011, 51033, 153099, 2330507, 6991521, 20974563]

約数ペア:

[(1, 20974563), (3, 6991521), (9, 2330507), (137, 153099), (411, 51033), (1233, 17011)]