21537756

素因数分解:

$2^2\times 3^2\times {\mathrm{479}}^1\times {\mathrm{1249}}^1$

素因数の和:1738

約数の個数: 36

約数和(自身を含む): 54600000

約数和(自身を除く): 33062244

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 479, 958, 1249, 1437, 1916, 2498, 2874, 3747, 4311, 4996, 5748, 7494, 8622, 11241, 14988, 17244, 22482, 44964, 598271, 1196542, 1794813, 2393084, 3589626, 5384439, 7179252, 10768878, 21537756]

約数ペア:

[(1, 21537756), (2, 10768878), (3, 7179252), (4, 5384439), (6, 3589626), (9, 2393084), (12, 1794813), (18, 1196542), (36, 598271), (479, 44964), (958, 22482), (1249, 17244), (1437, 14988), (1916, 11241), (2498, 8622), (2874, 7494), (3747, 5748), (4311, 4996)]