21768075

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1$

素因数の和:314

約数の個数: 96

約数和(自身を含む): 48568320

約数和(自身を除く): 26800245

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 25, 27, 35, 45, 51, 63, 75, 85, 105, 119, 135, 153, 175, 189, 225, 255, 271, 315, 357, 425, 459, 525, 595, 675, 765, 813, 945, 1071, 1275, 1355, 1575, 1785, 1897, 2295, 2439, 2975, 3213, 3825, 4065, 4607, 4725, 5355, 5691, 6775, 7317, 8925, 9485, 11475, 12195, 13821, 16065, 17073, 20325, 23035, 26775, 28455, 32249, 36585, 41463, 47425, 51219, 60975, 69105, 80325, 85365, 96747, 115175, 124389, 142275, 161245, 182925, 207315, 256095, 290241, 345525, 426825, 483735, 621945, 806225, 870723, 1036575, 1280475, 1451205, 2418675, 3109725, 4353615, 7256025, 21768075]

約数ペア:

[(1, 21768075), (3, 7256025), (5, 4353615), (7, 3109725), (9, 2418675), (15, 1451205), (17, 1280475), (21, 1036575), (25, 870723), (27, 806225), (35, 621945), (45, 483735), (51, 426825), (63, 345525), (75, 290241), (85, 256095), (105, 207315), (119, 182925), (135, 161245), (153, 142275), (175, 124389), (189, 115175), (225, 96747), (255, 85365), (271, 80325), (315, 69105), (357, 60975), (425, 51219), (459, 47425), (525, 41463), (595, 36585), (675, 32249), (765, 28455), (813, 26775), (945, 23035), (1071, 20325), (1275, 17073), (1355, 16065), (1575, 13821), (1785, 12195), (1897, 11475), (2295, 9485), (2439, 8925), (2975, 7317), (3213, 6775), (3825, 5691), (4065, 5355), (4607, 4725)]