21408912

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{317}}^1$

素因数の和:405

約数の個数: 120

約数和(自身を含む): 69715776

約数和(自身を除く): 48306864

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 67, 72, 84, 112, 126, 134, 144, 168, 201, 252, 268, 317, 336, 402, 469, 504, 536, 603, 634, 804, 938, 951, 1008, 1072, 1206, 1268, 1407, 1608, 1876, 1902, 2219, 2412, 2536, 2814, 2853, 3216, 3752, 3804, 4221, 4438, 4824, 5072, 5628, 5706, 6657, 7504, 7608, 8442, 8876, 9648, 11256, 11412, 13314, 15216, 16884, 17752, 19971, 21239, 22512, 22824, 26628, 33768, 35504, 39942, 42478, 45648, 53256, 63717, 67536, 79884, 84956, 106512, 127434, 148673, 159768, 169912, 191151, 254868, 297346, 319536, 339824, 382302, 446019, 509736, 594692, 764604, 892038, 1019472, 1189384, 1338057, 1529208, 1784076, 2378768, 2676114, 3058416, 3568152, 5352228, 7136304, 10704456, 21408912]

約数ペア:

[(1, 21408912), (2, 10704456), (3, 7136304), (4, 5352228), (6, 3568152), (7, 3058416), (8, 2676114), (9, 2378768), (12, 1784076), (14, 1529208), (16, 1338057), (18, 1189384), (21, 1019472), (24, 892038), (28, 764604), (36, 594692), (42, 509736), (48, 446019), (56, 382302), (63, 339824), (67, 319536), (72, 297346), (84, 254868), (112, 191151), (126, 169912), (134, 159768), (144, 148673), (168, 127434), (201, 106512), (252, 84956), (268, 79884), (317, 67536), (336, 63717), (402, 53256), (469, 45648), (504, 42478), (536, 39942), (603, 35504), (634, 33768), (804, 26628), (938, 22824), (951, 22512), (1008, 21239), (1072, 19971), (1206, 17752), (1268, 16884), (1407, 15216), (1608, 13314), (1876, 11412), (1902, 11256), (2219, 9648), (2412, 8876), (2536, 8442), (2814, 7608), (2853, 7504), (3216, 6657), (3752, 5706), (3804, 5628), (4221, 5072), (4438, 4824)]