15639211

素因数分解:

$7^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:418

約数の個数: 16

約数和(自身を含む): 18304000

約数和(自身を除く): 2664789

約数列:

[1, 7, 103, 109, 199, 721, 763, 1393, 11227, 20497, 21691, 78589, 143479, 151837, 2234173, 15639211]

約数ペア:

[(1, 15639211), (7, 2234173), (103, 151837), (109, 143479), (199, 78589), (721, 21691), (763, 20497), (1393, 11227)]