19983842

素因数分解:

$2^1\times {\mathrm{29}}^2\times {\mathrm{109}}^2$

素因数の和:278

約数の個数: 18

約数和(自身を含む): 31332483

約数和(自身を除く): 11348641

約数列:

[1, 2, 29, 58, 109, 218, 841, 1682, 3161, 6322, 11881, 23762, 91669, 183338, 344549, 689098, 9991921, 19983842]

約数ペア:

[(1, 19983842), (2, 9991921), (29, 689098), (58, 344549), (109, 183338), (218, 91669), (841, 23762), (1682, 11881), (3161, 6322)]