28468557

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{367}}^1$

素因数の和:419

約数の個数: 48

約数和(自身を含む): 48487680

約数和(自身を除く): 20019123

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 117, 153, 169, 221, 351, 367, 459, 507, 663, 1101, 1521, 1989, 2873, 3303, 4563, 4771, 5967, 6239, 8619, 9909, 14313, 18717, 25857, 42939, 56151, 62023, 77571, 81107, 128817, 168453, 186069, 243321, 558207, 729963, 1054391, 1674621, 2189889, 3163173, 9489519, 28468557]

約数ペア:

[(1, 28468557), (3, 9489519), (9, 3163173), (13, 2189889), (17, 1674621), (27, 1054391), (39, 729963), (51, 558207), (117, 243321), (153, 186069), (169, 168453), (221, 128817), (351, 81107), (367, 77571), (459, 62023), (507, 56151), (663, 42939), (1101, 25857), (1521, 18717), (1989, 14313), (2873, 9909), (3303, 8619), (4563, 6239), (4771, 5967)]