19728324

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{647}}^1$

素因数の和:686

約数の個数: 108

約数和(自身を含む): 62741952

約数和(自身を除く): 43013628

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 63, 66, 77, 84, 99, 121, 126, 132, 154, 198, 231, 242, 252, 308, 363, 396, 462, 484, 647, 693, 726, 847, 924, 1089, 1294, 1386, 1452, 1694, 1941, 2178, 2541, 2588, 2772, 3388, 3882, 4356, 4529, 5082, 5823, 7117, 7623, 7764, 9058, 10164, 11646, 13587, 14234, 15246, 18116, 21351, 23292, 27174, 28468, 30492, 40761, 42702, 49819, 54348, 64053, 78287, 81522, 85404, 99638, 128106, 149457, 156574, 163044, 199276, 234861, 256212, 298914, 313148, 448371, 469722, 548009, 597828, 704583, 896742, 939444, 1096018, 1409166, 1644027, 1793484, 2192036, 2818332, 3288054, 4932081, 6576108, 9864162, 19728324]

約数ペア:

[(1, 19728324), (2, 9864162), (3, 6576108), (4, 4932081), (6, 3288054), (7, 2818332), (9, 2192036), (11, 1793484), (12, 1644027), (14, 1409166), (18, 1096018), (21, 939444), (22, 896742), (28, 704583), (33, 597828), (36, 548009), (42, 469722), (44, 448371), (63, 313148), (66, 298914), (77, 256212), (84, 234861), (99, 199276), (121, 163044), (126, 156574), (132, 149457), (154, 128106), (198, 99638), (231, 85404), (242, 81522), (252, 78287), (308, 64053), (363, 54348), (396, 49819), (462, 42702), (484, 40761), (647, 30492), (693, 28468), (726, 27174), (847, 23292), (924, 21351), (1089, 18116), (1294, 15246), (1386, 14234), (1452, 13587), (1694, 11646), (1941, 10164), (2178, 9058), (2541, 7764), (2588, 7623), (2772, 7117), (3388, 5823), (3882, 5082), (4356, 4529)]