21087072

素因数分解:

$2^5\times 3^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:165

約数の個数: 144

約数和(自身を含む): 65454480

約数和(自身を除く): 44367408

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 32, 34, 36, 48, 51, 59, 68, 72, 73, 96, 102, 118, 136, 144, 146, 153, 177, 204, 219, 236, 272, 288, 292, 306, 354, 408, 438, 472, 531, 544, 584, 612, 657, 708, 816, 876, 944, 1003, 1062, 1168, 1224, 1241, 1314, 1416, 1632, 1752, 1888, 2006, 2124, 2336, 2448, 2482, 2628, 2832, 3009, 3504, 3723, 4012, 4248, 4307, 4896, 4964, 5256, 5664, 6018, 7008, 7446, 8024, 8496, 8614, 9027, 9928, 10512, 11169, 12036, 12921, 14892, 16048, 16992, 17228, 18054, 19856, 21024, 22338, 24072, 25842, 29784, 32096, 34456, 36108, 38763, 39712, 44676, 48144, 51684, 59568, 68912, 72216, 73219, 77526, 89352, 96288, 103368, 119136, 137824, 144432, 146438, 155052, 178704, 206736, 219657, 288864, 292876, 310104, 357408, 413472, 439314, 585752, 620208, 658971, 878628, 1171504, 1240416, 1317942, 1757256, 2343008, 2635884, 3514512, 5271768, 7029024, 10543536, 21087072]

約数ペア:

[(1, 21087072), (2, 10543536), (3, 7029024), (4, 5271768), (6, 3514512), (8, 2635884), (9, 2343008), (12, 1757256), (16, 1317942), (17, 1240416), (18, 1171504), (24, 878628), (32, 658971), (34, 620208), (36, 585752), (48, 439314), (51, 413472), (59, 357408), (68, 310104), (72, 292876), (73, 288864), (96, 219657), (102, 206736), (118, 178704), (136, 155052), (144, 146438), (146, 144432), (153, 137824), (177, 119136), (204, 103368), (219, 96288), (236, 89352), (272, 77526), (288, 73219), (292, 72216), (306, 68912), (354, 59568), (408, 51684), (438, 48144), (472, 44676), (531, 39712), (544, 38763), (584, 36108), (612, 34456), (657, 32096), (708, 29784), (816, 25842), (876, 24072), (944, 22338), (1003, 21024), (1062, 19856), (1168, 18054), (1224, 17228), (1241, 16992), (1314, 16048), (1416, 14892), (1632, 12921), (1752, 12036), (1888, 11169), (2006, 10512), (2124, 9928), (2336, 9027), (2448, 8614), (2482, 8496), (2628, 8024), (2832, 7446), (3009, 7008), (3504, 6018), (3723, 5664), (4012, 5256), (4248, 4964), (4307, 4896)]