19958018

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{1997}}^1$

素因数の和:2281

約数の個数: 16

約数和(自身を含む): 31648320

約数和(自身を除く): 11690302

約数列:

[1, 2, 19, 38, 263, 526, 1997, 3994, 4997, 9994, 37943, 75886, 525211, 1050422, 9979009, 19958018]

約数ペア:

[(1, 19958018), (2, 9979009), (19, 1050422), (38, 525211), (263, 75886), (526, 37943), (1997, 9994), (3994, 4997)]