21251986

素因数分解:

$2^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{5861}}^1$

素因数の和:5914

約数の個数: 24

約数和(自身を含む): 38091276

約数和(自身を除く): 16839290

約数列:

[1, 2, 7, 14, 37, 49, 74, 98, 259, 518, 1813, 3626, 5861, 11722, 41027, 82054, 216857, 287189, 433714, 574378, 1517999, 3035998, 10625993, 21251986]

約数ペア:

[(1, 21251986), (2, 10625993), (7, 3035998), (14, 1517999), (37, 574378), (49, 433714), (74, 287189), (98, 216857), (259, 82054), (518, 41027), (1813, 11722), (3626, 5861)]