21001728

素因数分解:

$2^9\times 3^1\times {\mathrm{11}}^2\times {\mathrm{113}}^1$

素因数の和:156

約数の個数: 120

約数和(自身を含む): 62042904

約数和(自身を除く): 41041176

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 64, 66, 88, 96, 113, 121, 128, 132, 176, 192, 226, 242, 256, 264, 339, 352, 363, 384, 452, 484, 512, 528, 678, 704, 726, 768, 904, 968, 1056, 1243, 1356, 1408, 1452, 1536, 1808, 1936, 2112, 2486, 2712, 2816, 2904, 3616, 3729, 3872, 4224, 4972, 5424, 5632, 5808, 7232, 7458, 7744, 8448, 9944, 10848, 11616, 13673, 14464, 14916, 15488, 16896, 19888, 21696, 23232, 27346, 28928, 29832, 30976, 39776, 41019, 43392, 46464, 54692, 57856, 59664, 61952, 79552, 82038, 86784, 92928, 109384, 119328, 159104, 164076, 173568, 185856, 218768, 238656, 318208, 328152, 437536, 477312, 636416, 656304, 875072, 954624, 1312608, 1750144, 1909248, 2625216, 3500288, 5250432, 7000576, 10500864, 21001728]

約数ペア:

[(1, 21001728), (2, 10500864), (3, 7000576), (4, 5250432), (6, 3500288), (8, 2625216), (11, 1909248), (12, 1750144), (16, 1312608), (22, 954624), (24, 875072), (32, 656304), (33, 636416), (44, 477312), (48, 437536), (64, 328152), (66, 318208), (88, 238656), (96, 218768), (113, 185856), (121, 173568), (128, 164076), (132, 159104), (176, 119328), (192, 109384), (226, 92928), (242, 86784), (256, 82038), (264, 79552), (339, 61952), (352, 59664), (363, 57856), (384, 54692), (452, 46464), (484, 43392), (512, 41019), (528, 39776), (678, 30976), (704, 29832), (726, 28928), (768, 27346), (904, 23232), (968, 21696), (1056, 19888), (1243, 16896), (1356, 15488), (1408, 14916), (1452, 14464), (1536, 13673), (1808, 11616), (1936, 10848), (2112, 9944), (2486, 8448), (2712, 7744), (2816, 7458), (2904, 7232), (3616, 5808), (3729, 5632), (3872, 5424), (4224, 4972)]