21438144

素因数分解:

$2^6\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1$

素因数の和:447

約数の個数: 168

約数和(自身を含む): 75813920

約数和(自身を除く): 54375776

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 32, 36, 39, 42, 48, 52, 56, 63, 64, 72, 78, 84, 91, 96, 104, 112, 117, 126, 144, 156, 168, 182, 192, 208, 224, 234, 252, 273, 288, 312, 336, 364, 409, 416, 448, 468, 504, 546, 576, 624, 672, 728, 818, 819, 832, 936, 1008, 1092, 1227, 1248, 1344, 1456, 1636, 1638, 1872, 2016, 2184, 2454, 2496, 2863, 2912, 3272, 3276, 3681, 3744, 4032, 4368, 4908, 5317, 5726, 5824, 6544, 6552, 7362, 7488, 8589, 8736, 9816, 10634, 11452, 13088, 13104, 14724, 15951, 17178, 17472, 19632, 21268, 22904, 25767, 26176, 26208, 29448, 31902, 34356, 37219, 39264, 42536, 45808, 47853, 51534, 52416, 58896, 63804, 68712, 74438, 78528, 85072, 91616, 95706, 103068, 111657, 117792, 127608, 137424, 148876, 170144, 183232, 191412, 206136, 223314, 235584, 255216, 274848, 297752, 334971, 340288, 382824, 412272, 446628, 510432, 549696, 595504, 669942, 765648, 824544, 893256, 1020864, 1191008, 1339884, 1531296, 1649088, 1786512, 2382016, 2679768, 3062592, 3573024, 5359536, 7146048, 10719072, 21438144]

約数ペア:

[(1, 21438144), (2, 10719072), (3, 7146048), (4, 5359536), (6, 3573024), (7, 3062592), (8, 2679768), (9, 2382016), (12, 1786512), (13, 1649088), (14, 1531296), (16, 1339884), (18, 1191008), (21, 1020864), (24, 893256), (26, 824544), (28, 765648), (32, 669942), (36, 595504), (39, 549696), (42, 510432), (48, 446628), (52, 412272), (56, 382824), (63, 340288), (64, 334971), (72, 297752), (78, 274848), (84, 255216), (91, 235584), (96, 223314), (104, 206136), (112, 191412), (117, 183232), (126, 170144), (144, 148876), (156, 137424), (168, 127608), (182, 117792), (192, 111657), (208, 103068), (224, 95706), (234, 91616), (252, 85072), (273, 78528), (288, 74438), (312, 68712), (336, 63804), (364, 58896), (409, 52416), (416, 51534), (448, 47853), (468, 45808), (504, 42536), (546, 39264), (576, 37219), (624, 34356), (672, 31902), (728, 29448), (818, 26208), (819, 26176), (832, 25767), (936, 22904), (1008, 21268), (1092, 19632), (1227, 17472), (1248, 17178), (1344, 15951), (1456, 14724), (1636, 13104), (1638, 13088), (1872, 11452), (2016, 10634), (2184, 9816), (2454, 8736), (2496, 8589), (2863, 7488), (2912, 7362), (3272, 6552), (3276, 6544), (3681, 5824), (3744, 5726), (4032, 5317), (4368, 4908)]