21565292

素因数分解:

$2^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{2341}}^1$

素因数の和:2406

約数の個数: 36

約数和(自身を含む): 44853984

約数和(自身を除く): 23288692

約数列:

[1, 2, 4, 7, 14, 28, 47, 49, 94, 98, 188, 196, 329, 658, 1316, 2303, 2341, 4606, 4682, 9212, 9364, 16387, 32774, 65548, 110027, 114709, 220054, 229418, 440108, 458836, 770189, 1540378, 3080756, 5391323, 10782646, 21565292]

約数ペア:

[(1, 21565292), (2, 10782646), (4, 5391323), (7, 3080756), (14, 1540378), (28, 770189), (47, 458836), (49, 440108), (94, 229418), (98, 220054), (188, 114709), (196, 110027), (329, 65548), (658, 32774), (1316, 16387), (2303, 9364), (2341, 9212), (4606, 4682)]