19905534

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:123

約数の個数: 128

約数和(自身を含む): 53084160

約数和(自身を除く): 33178626

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 23, 27, 31, 33, 46, 47, 54, 62, 66, 69, 93, 94, 99, 138, 141, 186, 198, 207, 253, 279, 282, 297, 341, 414, 423, 506, 517, 558, 594, 621, 682, 713, 759, 837, 846, 1023, 1034, 1081, 1242, 1269, 1426, 1457, 1518, 1551, 1674, 2046, 2139, 2162, 2277, 2538, 2914, 3069, 3102, 3243, 4278, 4371, 4554, 4653, 6138, 6417, 6486, 6831, 7843, 8742, 9207, 9306, 9729, 11891, 12834, 13113, 13662, 13959, 15686, 16027, 18414, 19251, 19458, 23529, 23782, 26226, 27918, 29187, 32054, 33511, 35673, 38502, 39339, 47058, 48081, 58374, 67022, 70587, 71346, 78678, 96162, 100533, 107019, 141174, 144243, 201066, 211761, 214038, 288486, 301599, 321057, 368621, 423522, 432729, 603198, 642114, 737242, 865458, 904797, 1105863, 1809594, 2211726, 3317589, 6635178, 9952767, 19905534]

約数ペア:

[(1, 19905534), (2, 9952767), (3, 6635178), (6, 3317589), (9, 2211726), (11, 1809594), (18, 1105863), (22, 904797), (23, 865458), (27, 737242), (31, 642114), (33, 603198), (46, 432729), (47, 423522), (54, 368621), (62, 321057), (66, 301599), (69, 288486), (93, 214038), (94, 211761), (99, 201066), (138, 144243), (141, 141174), (186, 107019), (198, 100533), (207, 96162), (253, 78678), (279, 71346), (282, 70587), (297, 67022), (341, 58374), (414, 48081), (423, 47058), (506, 39339), (517, 38502), (558, 35673), (594, 33511), (621, 32054), (682, 29187), (713, 27918), (759, 26226), (837, 23782), (846, 23529), (1023, 19458), (1034, 19251), (1081, 18414), (1242, 16027), (1269, 15686), (1426, 13959), (1457, 13662), (1518, 13113), (1551, 12834), (1674, 11891), (2046, 9729), (2139, 9306), (2162, 9207), (2277, 8742), (2538, 7843), (2914, 6831), (3069, 6486), (3102, 6417), (3243, 6138), (4278, 4653), (4371, 4554)]