19308075

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{5987}}^1$

素因数の和:6043

約数の個数: 24

約数和(自身を含む): 32670528

約数和(自身を除く): 13362453

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 5987, 17961, 29935, 89805, 149675, 257441, 449025, 772323, 1287205, 3861615, 6436025, 19308075]

約数ペア:

[(1, 19308075), (3, 6436025), (5, 3861615), (15, 1287205), (25, 772323), (43, 449025), (75, 257441), (129, 149675), (215, 89805), (645, 29935), (1075, 17961), (3225, 5987)]