20742278

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{4657}}^1$

素因数の和:4807

約数の個数: 16

約数和(自身を含む): 33202224

約数和(自身を除く): 12459946

約数列:

[1, 2, 17, 34, 131, 262, 2227, 4454, 4657, 9314, 79169, 158338, 610067, 1220134, 10371139, 20742278]

約数ペア:

[(1, 20742278), (2, 10371139), (17, 1220134), (34, 610067), (131, 158338), (262, 79169), (2227, 9314), (4454, 4657)]