21037249620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{181763}}^1$

素因数の和:182421

約数の個数: 72

約数和(自身を含む): 63912584736

約数和(自身を除く): 42875335116

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 643, 1286, 1929, 2572, 3215, 3858, 5787, 6430, 7716, 9645, 11574, 12860, 19290, 23148, 28935, 38580, 57870, 115740, 181763, 363526, 545289, 727052, 908815, 1090578, 1635867, 1817630, 2181156, 2726445, 3271734, 3635260, 5452890, 6543468, 8179335, 10905780, 16358670, 32717340, 116873609, 233747218, 350620827, 467494436, 584368045, 701241654, 1051862481, 1168736090, 1402483308, 1753104135, 2103724962, 2337472180, 3506208270, 4207449924, 5259312405, 7012416540, 10518624810, 21037249620]

約数ペア:

[(1, 21037249620), (2, 10518624810), (3, 7012416540), (4, 5259312405), (5, 4207449924), (6, 3506208270), (9, 2337472180), (10, 2103724962), (12, 1753104135), (15, 1402483308), (18, 1168736090), (20, 1051862481), (30, 701241654), (36, 584368045), (45, 467494436), (60, 350620827), (90, 233747218), (180, 116873609), (643, 32717340), (1286, 16358670), (1929, 10905780), (2572, 8179335), (3215, 6543468), (3858, 5452890), (5787, 3635260), (6430, 3271734), (7716, 2726445), (9645, 2181156), (11574, 1817630), (12860, 1635867), (19290, 1090578), (23148, 908815), (28935, 727052), (38580, 545289), (57870, 363526), (115740, 181763)]