21323729

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{167}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 6255151

約数列:

[1, 7, 17, 29, 37, 119, 167, 203, 259, 493, 629, 1073, 1169, 2839, 3451, 4403, 4843, 6179, 7511, 18241, 19873, 33901, 43253, 82331, 105043, 127687, 179191, 576317, 735301, 1254337, 3046247, 21323729]

約数ペア:

[(1, 21323729), (7, 3046247), (17, 1254337), (29, 735301), (37, 576317), (119, 179191), (167, 127687), (203, 105043), (259, 82331), (493, 43253), (629, 33901), (1073, 19873), (1169, 18241), (2839, 7511), (3451, 6179), (4403, 4843)]