28505763

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:166

約数の個数: 80

約数和(自身を含む): 52690176

約数和(自身を除く): 24184413

約数列:

[1, 3, 9, 11, 13, 23, 27, 33, 39, 69, 81, 99, 107, 117, 143, 207, 253, 297, 299, 321, 351, 429, 621, 759, 891, 897, 963, 1053, 1177, 1287, 1391, 1863, 2277, 2461, 2691, 2889, 3289, 3531, 3861, 4173, 6831, 7383, 8073, 8667, 9867, 10593, 11583, 12519, 15301, 20493, 22149, 24219, 27071, 29601, 31779, 31993, 37557, 45903, 66447, 81213, 88803, 95337, 95979, 112671, 137709, 199341, 243639, 266409, 287937, 351923, 413127, 730917, 863811, 1055769, 1239381, 2192751, 2591433, 3167307, 9501921, 28505763]

約数ペア:

[(1, 28505763), (3, 9501921), (9, 3167307), (11, 2591433), (13, 2192751), (23, 1239381), (27, 1055769), (33, 863811), (39, 730917), (69, 413127), (81, 351923), (99, 287937), (107, 266409), (117, 243639), (143, 199341), (207, 137709), (253, 112671), (297, 95979), (299, 95337), (321, 88803), (351, 81213), (429, 66447), (621, 45903), (759, 37557), (891, 31993), (897, 31779), (963, 29601), (1053, 27071), (1177, 24219), (1287, 22149), (1391, 20493), (1863, 15301), (2277, 12519), (2461, 11583), (2691, 10593), (2889, 9867), (3289, 8667), (3531, 8073), (3861, 7383), (4173, 6831)]