20651822

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{2731}}^1$

素因数の和:2951

約数の個数: 16

約数和(自身を含む): 32784000

約数和(自身を除く): 12132178

約数列:

[1, 2, 19, 38, 199, 398, 2731, 3781, 5462, 7562, 51889, 103778, 543469, 1086938, 10325911, 20651822]

約数ペア:

[(1, 20651822), (2, 10325911), (19, 1086938), (38, 543469), (199, 103778), (398, 51889), (2731, 7562), (3781, 5462)]