20401472007

素因数分解:

$3^2\times 7^1\times {\mathrm{4051}}^1\times {\mathrm{79939}}^1$

素因数の和:84003

約数の個数: 24

約数和(自身を含む): 33687355520

約数和(自身を除く): 13285883513

約数列:

[1, 3, 7, 9, 21, 63, 4051, 12153, 28357, 36459, 79939, 85071, 239817, 255213, 559573, 719451, 1678719, 5036157, 323832889, 971498667, 2266830223, 2914496001, 6800490669, 20401472007]

約数ペア:

[(1, 20401472007), (3, 6800490669), (7, 2914496001), (9, 2266830223), (21, 971498667), (63, 323832889), (4051, 5036157), (12153, 1678719), (28357, 719451), (36459, 559573), (79939, 255213), (85071, 239817)]