21210288

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{139}}^1$

素因数の和:195

約数の個数: 120

約数和(自身を含む): 63954240

約数和(自身を除く): 42743952

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 17, 22, 24, 33, 34, 44, 48, 51, 66, 68, 88, 102, 132, 136, 139, 176, 187, 204, 264, 272, 278, 289, 374, 408, 417, 528, 556, 561, 578, 748, 816, 834, 867, 1112, 1122, 1156, 1496, 1529, 1668, 1734, 2224, 2244, 2312, 2363, 2992, 3058, 3179, 3336, 3468, 4488, 4587, 4624, 4726, 6116, 6358, 6672, 6936, 7089, 8976, 9174, 9452, 9537, 12232, 12716, 13872, 14178, 18348, 18904, 19074, 24464, 25432, 25993, 28356, 36696, 37808, 38148, 40171, 50864, 51986, 56712, 73392, 76296, 77979, 80342, 103972, 113424, 120513, 152592, 155958, 160684, 207944, 241026, 311916, 321368, 415888, 441881, 482052, 623832, 642736, 883762, 964104, 1247664, 1325643, 1767524, 1928208, 2651286, 3535048, 5302572, 7070096, 10605144, 21210288]

約数ペア:

[(1, 21210288), (2, 10605144), (3, 7070096), (4, 5302572), (6, 3535048), (8, 2651286), (11, 1928208), (12, 1767524), (16, 1325643), (17, 1247664), (22, 964104), (24, 883762), (33, 642736), (34, 623832), (44, 482052), (48, 441881), (51, 415888), (66, 321368), (68, 311916), (88, 241026), (102, 207944), (132, 160684), (136, 155958), (139, 152592), (176, 120513), (187, 113424), (204, 103972), (264, 80342), (272, 77979), (278, 76296), (289, 73392), (374, 56712), (408, 51986), (417, 50864), (528, 40171), (556, 38148), (561, 37808), (578, 36696), (748, 28356), (816, 25993), (834, 25432), (867, 24464), (1112, 19074), (1122, 18904), (1156, 18348), (1496, 14178), (1529, 13872), (1668, 12716), (1734, 12232), (2224, 9537), (2244, 9452), (2312, 9174), (2363, 8976), (2992, 7089), (3058, 6936), (3179, 6672), (3336, 6358), (3468, 6116), (4488, 4726), (4587, 4624)]