21293690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{193}}^1$

素因数の和:287

約数の個数: 64

約数和(自身を含む): 45256320

約数和(自身を除く): 23962630

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 59, 85, 110, 118, 170, 187, 193, 295, 374, 386, 590, 649, 935, 965, 1003, 1298, 1870, 1930, 2006, 2123, 3245, 3281, 4246, 5015, 6490, 6562, 10030, 10615, 11033, 11387, 16405, 21230, 22066, 22774, 32810, 36091, 55165, 56935, 72182, 110330, 113870, 125257, 180455, 193579, 250514, 360910, 387158, 626285, 967895, 1252570, 1935790, 2129369, 4258738, 10646845, 21293690]

約数ペア:

[(1, 21293690), (2, 10646845), (5, 4258738), (10, 2129369), (11, 1935790), (17, 1252570), (22, 967895), (34, 626285), (55, 387158), (59, 360910), (85, 250514), (110, 193579), (118, 180455), (170, 125257), (187, 113870), (193, 110330), (295, 72182), (374, 56935), (386, 55165), (590, 36091), (649, 32810), (935, 22774), (965, 22066), (1003, 21230), (1298, 16405), (1870, 11387), (1930, 11033), (2006, 10615), (2123, 10030), (3245, 6562), (3281, 6490), (4246, 5015)]