20280699

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1$

素因数の和:217

約数の個数: 40

約数和(自身を含む): 31891728

約数和(自身を除く): 11611029

約数列:

[1, 3, 9, 27, 37, 67, 81, 101, 111, 201, 303, 333, 603, 909, 999, 1809, 2479, 2727, 2997, 3737, 5427, 6767, 7437, 8181, 11211, 20301, 22311, 33633, 60903, 66933, 100899, 182709, 200799, 250379, 302697, 548127, 751137, 2253411, 6760233, 20280699]

約数ペア:

[(1, 20280699), (3, 6760233), (9, 2253411), (27, 751137), (37, 548127), (67, 302697), (81, 250379), (101, 200799), (111, 182709), (201, 100899), (303, 66933), (333, 60903), (603, 33633), (909, 22311), (999, 20301), (1809, 11211), (2479, 8181), (2727, 7437), (2997, 6767), (3737, 5427)]