21184310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{47}}^2\times {\mathrm{137}}^1$

素因数の和:245

約数の個数: 48

約数和(自身を含む): 44851104

約数和(自身を除く): 23666794

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 70, 94, 137, 235, 274, 329, 470, 658, 685, 959, 1370, 1645, 1918, 2209, 3290, 4418, 4795, 6439, 9590, 11045, 12878, 15463, 22090, 30926, 32195, 45073, 64390, 77315, 90146, 154630, 225365, 302633, 450730, 605266, 1513165, 2118431, 3026330, 4236862, 10592155, 21184310]

約数ペア:

[(1, 21184310), (2, 10592155), (5, 4236862), (7, 3026330), (10, 2118431), (14, 1513165), (35, 605266), (47, 450730), (70, 302633), (94, 225365), (137, 154630), (235, 90146), (274, 77315), (329, 64390), (470, 45073), (658, 32195), (685, 30926), (959, 22090), (1370, 15463), (1645, 12878), (1918, 11045), (2209, 9590), (3290, 6439), (4418, 4795)]