21330828

素因数分解:

$2^2\times 3^2\times {\mathrm{479}}^1\times {\mathrm{1237}}^1$

素因数の和:1726

約数の個数: 36

約数和(自身を含む): 54075840

約数和(自身を除く): 32745012

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 479, 958, 1237, 1437, 1916, 2474, 2874, 3711, 4311, 4948, 5748, 7422, 8622, 11133, 14844, 17244, 22266, 44532, 592523, 1185046, 1777569, 2370092, 3555138, 5332707, 7110276, 10665414, 21330828]

約数ペア:

[(1, 21330828), (2, 10665414), (3, 7110276), (4, 5332707), (6, 3555138), (9, 2370092), (12, 1777569), (18, 1185046), (36, 592523), (479, 44532), (958, 22266), (1237, 17244), (1437, 14844), (1916, 11133), (2474, 8622), (2874, 7422), (3711, 5748), (4311, 4948)]