21265776

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{73}}^1$

素因数の和:128

約数の個数: 180

約数和(自身を含む): 73242832

約数和(自身を除く): 51977056

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 28, 34, 36, 42, 48, 51, 56, 63, 68, 72, 73, 84, 102, 112, 119, 126, 136, 144, 146, 153, 168, 204, 219, 238, 252, 272, 289, 292, 306, 336, 357, 408, 438, 476, 504, 511, 578, 584, 612, 657, 714, 816, 867, 876, 952, 1008, 1022, 1071, 1156, 1168, 1224, 1241, 1314, 1428, 1533, 1734, 1752, 1904, 2023, 2044, 2142, 2312, 2448, 2482, 2601, 2628, 2856, 3066, 3468, 3504, 3723, 4046, 4088, 4284, 4599, 4624, 4964, 5202, 5256, 5712, 6069, 6132, 6936, 7446, 8092, 8176, 8568, 8687, 9198, 9928, 10404, 10512, 11169, 12138, 12264, 13872, 14892, 16184, 17136, 17374, 18207, 18396, 19856, 20808, 21097, 22338, 24276, 24528, 26061, 29784, 32368, 34748, 36414, 36792, 41616, 42194, 44676, 48552, 52122, 59568, 63291, 69496, 72828, 73584, 78183, 84388, 89352, 97104, 104244, 126582, 138992, 145656, 147679, 156366, 168776, 178704, 189873, 208488, 253164, 291312, 295358, 312732, 337552, 379746, 416976, 443037, 506328, 590716, 625464, 759492, 886074, 1012656, 1181432, 1250928, 1329111, 1518984, 1772148, 2362864, 2658222, 3037968, 3544296, 5316444, 7088592, 10632888, 21265776]

約数ペア:

[(1, 21265776), (2, 10632888), (3, 7088592), (4, 5316444), (6, 3544296), (7, 3037968), (8, 2658222), (9, 2362864), (12, 1772148), (14, 1518984), (16, 1329111), (17, 1250928), (18, 1181432), (21, 1012656), (24, 886074), (28, 759492), (34, 625464), (36, 590716), (42, 506328), (48, 443037), (51, 416976), (56, 379746), (63, 337552), (68, 312732), (72, 295358), (73, 291312), (84, 253164), (102, 208488), (112, 189873), (119, 178704), (126, 168776), (136, 156366), (144, 147679), (146, 145656), (153, 138992), (168, 126582), (204, 104244), (219, 97104), (238, 89352), (252, 84388), (272, 78183), (289, 73584), (292, 72828), (306, 69496), (336, 63291), (357, 59568), (408, 52122), (438, 48552), (476, 44676), (504, 42194), (511, 41616), (578, 36792), (584, 36414), (612, 34748), (657, 32368), (714, 29784), (816, 26061), (867, 24528), (876, 24276), (952, 22338), (1008, 21097), (1022, 20808), (1071, 19856), (1156, 18396), (1168, 18207), (1224, 17374), (1241, 17136), (1314, 16184), (1428, 14892), (1533, 13872), (1734, 12264), (1752, 12138), (1904, 11169), (2023, 10512), (2044, 10404), (2142, 9928), (2312, 9198), (2448, 8687), (2482, 8568), (2601, 8176), (2628, 8092), (2856, 7446), (3066, 6936), (3468, 6132), (3504, 6069), (3723, 5712), (4046, 5256), (4088, 5202), (4284, 4964), (4599, 4624)]