20451400812

素因数分解:

$2^2\times 3^2\times {\mathrm{661}}^1\times {\mathrm{859447}}^1$

素因数の和:860118

約数の個数: 36

約数和(自身を含む): 51774866416

約数和(自身を除く): 31323465604

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 661, 1322, 1983, 2644, 3966, 5949, 7932, 11898, 23796, 859447, 1718894, 2578341, 3437788, 5156682, 7735023, 10313364, 15470046, 30940092, 568094467, 1136188934, 1704283401, 2272377868, 3408566802, 5112850203, 6817133604, 10225700406, 20451400812]

約数ペア:

[(1, 20451400812), (2, 10225700406), (3, 6817133604), (4, 5112850203), (6, 3408566802), (9, 2272377868), (12, 1704283401), (18, 1136188934), (36, 568094467), (661, 30940092), (1322, 15470046), (1983, 10313364), (2644, 7735023), (3966, 5156682), (5949, 3437788), (7932, 2578341), (11898, 1718894), (23796, 859447)]