21528864

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{181}}^1$

素因数の和:263

約数の個数: 144

約数和(自身を含む): 71547840

約数和(自身を除く): 50018976

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 59, 63, 72, 84, 96, 112, 118, 126, 144, 168, 177, 181, 224, 236, 252, 288, 336, 354, 362, 413, 472, 504, 531, 543, 672, 708, 724, 826, 944, 1008, 1062, 1086, 1239, 1267, 1416, 1448, 1629, 1652, 1888, 2016, 2124, 2172, 2478, 2534, 2832, 2896, 3258, 3304, 3717, 3801, 4248, 4344, 4956, 5068, 5664, 5792, 6516, 6608, 7434, 7602, 8496, 8688, 9912, 10136, 10679, 11403, 13032, 13216, 14868, 15204, 16992, 17376, 19824, 20272, 21358, 22806, 26064, 29736, 30408, 32037, 39648, 40544, 42716, 45612, 52128, 59472, 60816, 64074, 74753, 85432, 91224, 96111, 118944, 121632, 128148, 149506, 170864, 182448, 192222, 224259, 256296, 299012, 341728, 364896, 384444, 448518, 512592, 598024, 672777, 768888, 897036, 1025184, 1196048, 1345554, 1537776, 1794072, 2392096, 2691108, 3075552, 3588144, 5382216, 7176288, 10764432, 21528864]

約数ペア:

[(1, 21528864), (2, 10764432), (3, 7176288), (4, 5382216), (6, 3588144), (7, 3075552), (8, 2691108), (9, 2392096), (12, 1794072), (14, 1537776), (16, 1345554), (18, 1196048), (21, 1025184), (24, 897036), (28, 768888), (32, 672777), (36, 598024), (42, 512592), (48, 448518), (56, 384444), (59, 364896), (63, 341728), (72, 299012), (84, 256296), (96, 224259), (112, 192222), (118, 182448), (126, 170864), (144, 149506), (168, 128148), (177, 121632), (181, 118944), (224, 96111), (236, 91224), (252, 85432), (288, 74753), (336, 64074), (354, 60816), (362, 59472), (413, 52128), (472, 45612), (504, 42716), (531, 40544), (543, 39648), (672, 32037), (708, 30408), (724, 29736), (826, 26064), (944, 22806), (1008, 21358), (1062, 20272), (1086, 19824), (1239, 17376), (1267, 16992), (1416, 15204), (1448, 14868), (1629, 13216), (1652, 13032), (1888, 11403), (2016, 10679), (2124, 10136), (2172, 9912), (2478, 8688), (2534, 8496), (2832, 7602), (2896, 7434), (3258, 6608), (3304, 6516), (3717, 5792), (3801, 5664), (4248, 5068), (4344, 4956)]