257510799

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{337}}^1$

素因数の和:677

約数の個数: 64

約数和(自身を含む): 472442880

約数和(自身を除く): 214932081

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 311, 337, 351, 819, 933, 1011, 2177, 2359, 2457, 2799, 3033, 4043, 4381, 6531, 7077, 8397, 9099, 12129, 13143, 19593, 21231, 28301, 30667, 36387, 39429, 58779, 63693, 84903, 92001, 104807, 109161, 118287, 254709, 276003, 314421, 733649, 764127, 828009, 943263, 1362491, 2200947, 2829789, 4087473, 6602841, 9537437, 12262419, 19808523, 28612311, 36787257, 85836933, 257510799]

約数ペア:

[(1, 257510799), (3, 85836933), (7, 36787257), (9, 28612311), (13, 19808523), (21, 12262419), (27, 9537437), (39, 6602841), (63, 4087473), (91, 2829789), (117, 2200947), (189, 1362491), (273, 943263), (311, 828009), (337, 764127), (351, 733649), (819, 314421), (933, 276003), (1011, 254709), (2177, 118287), (2359, 109161), (2457, 104807), (2799, 92001), (3033, 84903), (4043, 63693), (4381, 58779), (6531, 39429), (7077, 36387), (8397, 30667), (9099, 28301), (12129, 21231), (13143, 19593)]