21363716

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{487}}^1\times {\mathrm{997}}^1$

素因数の和:1499

約数の個数: 24

約数和(自身を含む): 40910016

約数和(自身を除く): 19546300

約数列:

[1, 2, 4, 11, 22, 44, 487, 974, 997, 1948, 1994, 3988, 5357, 10714, 10967, 21428, 21934, 43868, 485539, 971078, 1942156, 5340929, 10681858, 21363716]

約数ペア:

[(1, 21363716), (2, 10681858), (4, 5340929), (11, 1942156), (22, 971078), (44, 485539), (487, 43868), (974, 21934), (997, 21428), (1948, 10967), (1994, 10714), (3988, 5357)]