19201455

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{521}}^1$

素因数の和:558

約数の個数: 80

約数和(自身を含む): 42444864

約数和(自身を除く): 23243409

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 27, 35, 39, 45, 63, 65, 81, 91, 105, 117, 135, 189, 195, 273, 315, 351, 405, 455, 521, 567, 585, 819, 945, 1053, 1365, 1563, 1755, 2457, 2605, 2835, 3647, 4095, 4689, 5265, 6773, 7371, 7815, 10941, 12285, 14067, 18235, 20319, 23445, 32823, 33865, 36855, 42201, 47411, 54705, 60957, 70335, 98469, 101595, 142233, 164115, 182871, 211005, 237055, 295407, 304785, 426699, 492345, 548613, 711165, 914355, 1280097, 1477035, 2133495, 2743065, 3840291, 6400485, 19201455]

約数ペア:

[(1, 19201455), (3, 6400485), (5, 3840291), (7, 2743065), (9, 2133495), (13, 1477035), (15, 1280097), (21, 914355), (27, 711165), (35, 548613), (39, 492345), (45, 426699), (63, 304785), (65, 295407), (81, 237055), (91, 211005), (105, 182871), (117, 164115), (135, 142233), (189, 101595), (195, 98469), (273, 70335), (315, 60957), (351, 54705), (405, 47411), (455, 42201), (521, 36855), (567, 33865), (585, 32823), (819, 23445), (945, 20319), (1053, 18235), (1365, 14067), (1563, 12285), (1755, 10941), (2457, 7815), (2605, 7371), (2835, 6773), (3647, 5265), (4095, 4689)]