20789769

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:107

約数の個数: 96

約数和(自身を含む): 40449024

約数和(自身を除く): 19659255

約数列:

[1, 3, 7, 11, 13, 21, 23, 33, 39, 43, 49, 69, 77, 91, 129, 143, 147, 161, 231, 253, 273, 299, 301, 429, 473, 483, 539, 559, 637, 759, 897, 903, 989, 1001, 1127, 1419, 1617, 1677, 1771, 1911, 2093, 2107, 2967, 3003, 3289, 3311, 3381, 3913, 5313, 6149, 6279, 6321, 6923, 7007, 9867, 9933, 10879, 11739, 12397, 12857, 14651, 18447, 20769, 21021, 23023, 23177, 27391, 32637, 37191, 38571, 43043, 43953, 48461, 69069, 69531, 76153, 82173, 89999, 129129, 141427, 145383, 161161, 228459, 269997, 301301, 424281, 483483, 533071, 629993, 903903, 989989, 1599213, 1889979, 2969967, 6929923, 20789769]

約数ペア:

[(1, 20789769), (3, 6929923), (7, 2969967), (11, 1889979), (13, 1599213), (21, 989989), (23, 903903), (33, 629993), (39, 533071), (43, 483483), (49, 424281), (69, 301301), (77, 269997), (91, 228459), (129, 161161), (143, 145383), (147, 141427), (161, 129129), (231, 89999), (253, 82173), (273, 76153), (299, 69531), (301, 69069), (429, 48461), (473, 43953), (483, 43043), (539, 38571), (559, 37191), (637, 32637), (759, 27391), (897, 23177), (903, 23023), (989, 21021), (1001, 20769), (1127, 18447), (1419, 14651), (1617, 12857), (1677, 12397), (1771, 11739), (1911, 10879), (2093, 9933), (2107, 9867), (2967, 7007), (3003, 6923), (3289, 6321), (3311, 6279), (3381, 6149), (3913, 5313)]