16728225

素因数分解:

$3^1\times 5^2\times {\mathrm{67}}^1\times {\mathrm{3329}}^1$

素因数の和:3409

約数の個数: 24

約数和(自身を含む): 28078560

約数和(自身を除く): 11350335

約数列:

[1, 3, 5, 15, 25, 67, 75, 201, 335, 1005, 1675, 3329, 5025, 9987, 16645, 49935, 83225, 223043, 249675, 669129, 1115215, 3345645, 5576075, 16728225]

約数ペア:

[(1, 16728225), (3, 5576075), (5, 3345645), (15, 1115215), (25, 669129), (67, 249675), (75, 223043), (201, 83225), (335, 49935), (1005, 16645), (1675, 9987), (3329, 5025)]