28149849

素因数分解:

$3^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1$

素因数の和:121

約数の個数: 96

約数和(自身を含む): 55444480

約数和(自身を除く): 27294631

約数列:

[1, 3, 7, 9, 13, 19, 21, 27, 39, 57, 63, 67, 81, 91, 117, 133, 171, 189, 201, 243, 247, 273, 351, 399, 469, 513, 567, 603, 741, 819, 871, 1053, 1197, 1273, 1407, 1539, 1701, 1729, 1809, 2223, 2457, 2613, 3159, 3591, 3819, 4221, 4617, 5187, 5427, 6097, 6669, 7371, 7839, 8911, 10773, 11457, 12663, 15561, 16281, 16549, 18291, 20007, 22113, 23517, 26733, 32319, 34371, 37989, 46683, 49647, 54873, 60021, 70551, 80199, 103113, 113967, 115843, 140049, 148941, 164619, 211653, 240597, 309339, 347529, 420147, 446823, 493857, 721791, 1042587, 1340469, 1481571, 2165373, 3127761, 4021407, 9383283, 28149849]

約数ペア:

[(1, 28149849), (3, 9383283), (7, 4021407), (9, 3127761), (13, 2165373), (19, 1481571), (21, 1340469), (27, 1042587), (39, 721791), (57, 493857), (63, 446823), (67, 420147), (81, 347529), (91, 309339), (117, 240597), (133, 211653), (171, 164619), (189, 148941), (201, 140049), (243, 115843), (247, 113967), (273, 103113), (351, 80199), (399, 70551), (469, 60021), (513, 54873), (567, 49647), (603, 46683), (741, 37989), (819, 34371), (871, 32319), (1053, 26733), (1197, 23517), (1273, 22113), (1407, 20007), (1539, 18291), (1701, 16549), (1729, 16281), (1809, 15561), (2223, 12663), (2457, 11457), (2613, 10773), (3159, 8911), (3591, 7839), (3819, 7371), (4221, 6669), (4617, 6097), (5187, 5427)]