21981516

素因数分解:

$2^2\times 3^1\times {\mathrm{631}}^1\times {\mathrm{2903}}^1$

素因数の和:3541

約数の個数: 24

約数和(自身を含む): 51389184

約数和(自身を除く): 29407668

約数列:

[1, 2, 3, 4, 6, 12, 631, 1262, 1893, 2524, 2903, 3786, 5806, 7572, 8709, 11612, 17418, 34836, 1831793, 3663586, 5495379, 7327172, 10990758, 21981516]

約数ペア:

[(1, 21981516), (2, 10990758), (3, 7327172), (4, 5495379), (6, 3663586), (12, 1831793), (631, 34836), (1262, 17418), (1893, 11612), (2524, 8709), (2903, 7572), (3786, 5806)]