18813914

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{70729}}^1$

素因数の和:70757

約数の個数: 16

約数和(自身を含む): 33950400

約数和(自身を除く): 15136486

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 70729, 141458, 495103, 990206, 1343851, 2687702, 9406957, 18813914]

約数ペア:

[(1, 18813914), (2, 9406957), (7, 2687702), (14, 1343851), (19, 990206), (38, 495103), (133, 141458), (266, 70729)]