21091332

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{709}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 51369920

約数和(自身を除く): 30278588

約数列:

[1, 2, 3, 4, 6, 12, 37, 67, 74, 111, 134, 148, 201, 222, 268, 402, 444, 709, 804, 1418, 2127, 2479, 2836, 4254, 4958, 7437, 8508, 9916, 14874, 26233, 29748, 47503, 52466, 78699, 95006, 104932, 142509, 157398, 190012, 285018, 314796, 570036, 1757611, 3515222, 5272833, 7030444, 10545666, 21091332]

約数ペア:

[(1, 21091332), (2, 10545666), (3, 7030444), (4, 5272833), (6, 3515222), (12, 1757611), (37, 570036), (67, 314796), (74, 285018), (111, 190012), (134, 157398), (148, 142509), (201, 104932), (222, 95006), (268, 78699), (402, 52466), (444, 47503), (709, 29748), (804, 26233), (1418, 14874), (2127, 9916), (2479, 8508), (2836, 7437), (4254, 4958)]