247957437

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{353}}^1$

素因数の和:490

約数の個数: 64

約数和(自身を含む): 426295296

約数和(自身を除く): 178337859

約数列:

[1, 3, 7, 13, 21, 31, 39, 83, 91, 93, 217, 249, 273, 353, 403, 581, 651, 1059, 1079, 1209, 1743, 2471, 2573, 2821, 3237, 4589, 7413, 7553, 7719, 8463, 10943, 13767, 18011, 22659, 29299, 32123, 32829, 33449, 54033, 76601, 87897, 96369, 100347, 142259, 205093, 229803, 234143, 380887, 426777, 615279, 702429, 908269, 995813, 1142661, 2666209, 2724807, 2987439, 6357883, 7998627, 11807497, 19073649, 35422491, 82652479, 247957437]

約数ペア:

[(1, 247957437), (3, 82652479), (7, 35422491), (13, 19073649), (21, 11807497), (31, 7998627), (39, 6357883), (83, 2987439), (91, 2724807), (93, 2666209), (217, 1142661), (249, 995813), (273, 908269), (353, 702429), (403, 615279), (581, 426777), (651, 380887), (1059, 234143), (1079, 229803), (1209, 205093), (1743, 142259), (2471, 100347), (2573, 96369), (2821, 87897), (3237, 76601), (4589, 54033), (7413, 33449), (7553, 32829), (7719, 32123), (8463, 29299), (10943, 22659), (13767, 18011)]