21439656

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{103}}^1$

素因数の和:188

約数の個数: 144

約数和(自身を含む): 69357600

約数和(自身を除く): 47917944

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 59, 63, 72, 84, 98, 103, 118, 126, 147, 168, 177, 196, 206, 236, 252, 294, 309, 354, 392, 412, 413, 441, 472, 504, 531, 588, 618, 708, 721, 824, 826, 882, 927, 1062, 1176, 1236, 1239, 1416, 1442, 1652, 1764, 1854, 2124, 2163, 2472, 2478, 2884, 2891, 3304, 3528, 3708, 3717, 4248, 4326, 4956, 5047, 5768, 5782, 6077, 6489, 7416, 7434, 8652, 8673, 9912, 10094, 11564, 12154, 12978, 14868, 15141, 17304, 17346, 18231, 20188, 23128, 24308, 25956, 26019, 29736, 30282, 34692, 36462, 40376, 42539, 45423, 48616, 51912, 52038, 54693, 60564, 69384, 72924, 85078, 90846, 104076, 109386, 121128, 127617, 145848, 170156, 181692, 208152, 218772, 255234, 297773, 340312, 363384, 382851, 437544, 510468, 595546, 765702, 893319, 1020936, 1191092, 1531404, 1786638, 2382184, 2679957, 3062808, 3573276, 5359914, 7146552, 10719828, 21439656]

約数ペア:

[(1, 21439656), (2, 10719828), (3, 7146552), (4, 5359914), (6, 3573276), (7, 3062808), (8, 2679957), (9, 2382184), (12, 1786638), (14, 1531404), (18, 1191092), (21, 1020936), (24, 893319), (28, 765702), (36, 595546), (42, 510468), (49, 437544), (56, 382851), (59, 363384), (63, 340312), (72, 297773), (84, 255234), (98, 218772), (103, 208152), (118, 181692), (126, 170156), (147, 145848), (168, 127617), (177, 121128), (196, 109386), (206, 104076), (236, 90846), (252, 85078), (294, 72924), (309, 69384), (354, 60564), (392, 54693), (412, 52038), (413, 51912), (441, 48616), (472, 45423), (504, 42539), (531, 40376), (588, 36462), (618, 34692), (708, 30282), (721, 29736), (824, 26019), (826, 25956), (882, 24308), (927, 23128), (1062, 20188), (1176, 18231), (1236, 17346), (1239, 17304), (1416, 15141), (1442, 14868), (1652, 12978), (1764, 12154), (1854, 11564), (2124, 10094), (2163, 9912), (2472, 8673), (2478, 8652), (2884, 7434), (2891, 7416), (3304, 6489), (3528, 6077), (3708, 5782), (3717, 5768), (4248, 5047), (4326, 4956)]