278380557

素因数分解:

$3^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12589}}^1$

素因数の和:12624

約数の個数: 48

約数和(自身を含む): 513269120

約数和(自身を除く): 234888563

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 243, 273, 351, 567, 819, 1053, 1701, 2457, 3159, 7371, 12589, 22113, 37767, 88123, 113301, 163657, 264369, 339903, 490971, 793107, 1019709, 1145599, 1472913, 2379321, 3059127, 3436797, 4418739, 7137963, 10310391, 13256217, 21413889, 30931173, 39768651, 92793519, 278380557]

約数ペア:

[(1, 278380557), (3, 92793519), (7, 39768651), (9, 30931173), (13, 21413889), (21, 13256217), (27, 10310391), (39, 7137963), (63, 4418739), (81, 3436797), (91, 3059127), (117, 2379321), (189, 1472913), (243, 1145599), (273, 1019709), (351, 793107), (567, 490971), (819, 339903), (1053, 264369), (1701, 163657), (2457, 113301), (3159, 88123), (7371, 37767), (12589, 22113)]