19961284

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{13451}}^1$

素因数の和:13515

約数の個数: 24

約数和(自身を含む): 40678848

約数和(自身を除く): 20717564

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 742, 1484, 13451, 26902, 53804, 94157, 188314, 376628, 712903, 1425806, 2851612, 4990321, 9980642, 19961284]

約数ペア:

[(1, 19961284), (2, 9980642), (4, 4990321), (7, 2851612), (14, 1425806), (28, 712903), (53, 376628), (106, 188314), (212, 94157), (371, 53804), (742, 26902), (1484, 13451)]