208953639

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{327001}}^1$

素因数の和:327078

約数の個数: 12

約数和(自身を含む): 306073872

約数和(自身を除く): 97120233

約数列:

[1, 3, 9, 71, 213, 639, 327001, 981003, 2943009, 23217071, 69651213, 208953639]

約数ペア:

[(1, 208953639), (3, 69651213), (9, 23217071), (71, 2943009), (213, 981003), (639, 327001)]