21586656

素因数分解:

$2^5\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{353}}^1$

素因数の和:393

約数の個数: 144

約数和(自身を含む): 71187984

約数和(自身を除く): 49601328

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 32, 39, 42, 48, 49, 52, 56, 78, 84, 91, 96, 98, 104, 112, 147, 156, 168, 182, 196, 208, 224, 273, 294, 312, 336, 353, 364, 392, 416, 546, 588, 624, 637, 672, 706, 728, 784, 1059, 1092, 1176, 1248, 1274, 1412, 1456, 1568, 1911, 2118, 2184, 2352, 2471, 2548, 2824, 2912, 3822, 4236, 4368, 4589, 4704, 4942, 5096, 5648, 7413, 7644, 8472, 8736, 9178, 9884, 10192, 11296, 13767, 14826, 15288, 16944, 17297, 18356, 19768, 20384, 27534, 29652, 30576, 32123, 33888, 34594, 36712, 39536, 51891, 55068, 59304, 61152, 64246, 69188, 73424, 79072, 96369, 103782, 110136, 118608, 128492, 138376, 146848, 192738, 207564, 220272, 224861, 237216, 256984, 276752, 385476, 415128, 440544, 449722, 513968, 553504, 674583, 770952, 830256, 899444, 1027936, 1349166, 1541904, 1660512, 1798888, 2698332, 3083808, 3597776, 5396664, 7195552, 10793328, 21586656]

約数ペア:

[(1, 21586656), (2, 10793328), (3, 7195552), (4, 5396664), (6, 3597776), (7, 3083808), (8, 2698332), (12, 1798888), (13, 1660512), (14, 1541904), (16, 1349166), (21, 1027936), (24, 899444), (26, 830256), (28, 770952), (32, 674583), (39, 553504), (42, 513968), (48, 449722), (49, 440544), (52, 415128), (56, 385476), (78, 276752), (84, 256984), (91, 237216), (96, 224861), (98, 220272), (104, 207564), (112, 192738), (147, 146848), (156, 138376), (168, 128492), (182, 118608), (196, 110136), (208, 103782), (224, 96369), (273, 79072), (294, 73424), (312, 69188), (336, 64246), (353, 61152), (364, 59304), (392, 55068), (416, 51891), (546, 39536), (588, 36712), (624, 34594), (637, 33888), (672, 32123), (706, 30576), (728, 29652), (784, 27534), (1059, 20384), (1092, 19768), (1176, 18356), (1248, 17297), (1274, 16944), (1412, 15288), (1456, 14826), (1568, 13767), (1911, 11296), (2118, 10192), (2184, 9884), (2352, 9178), (2471, 8736), (2548, 8472), (2824, 7644), (2912, 7413), (3822, 5648), (4236, 5096), (4368, 4942), (4589, 4704)]