16993557

素因数分解:

$3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:120

約数の個数: 80

約数和(自身を含む): 32199552

約数和(自身を除く): 15205995

約数列:

[1, 3, 7, 9, 17, 21, 27, 41, 43, 51, 63, 81, 119, 123, 129, 153, 189, 287, 301, 357, 369, 387, 459, 567, 697, 731, 861, 903, 1071, 1107, 1161, 1377, 1763, 2091, 2193, 2583, 2709, 3213, 3321, 3483, 4879, 5117, 5289, 6273, 6579, 7749, 8127, 9639, 12341, 14637, 15351, 15867, 18819, 19737, 23247, 24381, 29971, 37023, 43911, 46053, 47601, 56457, 59211, 89913, 111069, 131733, 138159, 142803, 209797, 269739, 333207, 395199, 414477, 629391, 809217, 999621, 1888173, 2427651, 5664519, 16993557]

約数ペア:

[(1, 16993557), (3, 5664519), (7, 2427651), (9, 1888173), (17, 999621), (21, 809217), (27, 629391), (41, 414477), (43, 395199), (51, 333207), (63, 269739), (81, 209797), (119, 142803), (123, 138159), (129, 131733), (153, 111069), (189, 89913), (287, 59211), (301, 56457), (357, 47601), (369, 46053), (387, 43911), (459, 37023), (567, 29971), (697, 24381), (731, 23247), (861, 19737), (903, 18819), (1071, 15867), (1107, 15351), (1161, 14637), (1377, 12341), (1763, 9639), (2091, 8127), (2193, 7749), (2583, 6579), (2709, 6273), (3213, 5289), (3321, 5117), (3483, 4879)]