21165984

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{10499}}^1$

素因数の和:10522

約数の個数: 72

約数和(自身を含む): 68796000

約数和(自身を除く): 47630016

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 72, 84, 96, 112, 126, 144, 168, 224, 252, 288, 336, 504, 672, 1008, 2016, 10499, 20998, 31497, 41996, 62994, 73493, 83992, 94491, 125988, 146986, 167984, 188982, 220479, 251976, 293972, 335968, 377964, 440958, 503952, 587944, 661437, 755928, 881916, 1007904, 1175888, 1322874, 1511856, 1763832, 2351776, 2645748, 3023712, 3527664, 5291496, 7055328, 10582992, 21165984]

約数ペア:

[(1, 21165984), (2, 10582992), (3, 7055328), (4, 5291496), (6, 3527664), (7, 3023712), (8, 2645748), (9, 2351776), (12, 1763832), (14, 1511856), (16, 1322874), (18, 1175888), (21, 1007904), (24, 881916), (28, 755928), (32, 661437), (36, 587944), (42, 503952), (48, 440958), (56, 377964), (63, 335968), (72, 293972), (84, 251976), (96, 220479), (112, 188982), (126, 167984), (144, 146986), (168, 125988), (224, 94491), (252, 83992), (288, 73493), (336, 62994), (504, 41996), (672, 31497), (1008, 20998), (2016, 10499)]