21521268

素因数分解:

$2^2\times 3^3\times {\mathrm{89}}^1\times {\mathrm{2239}}^1$

素因数の和:2341

約数の個数: 48

約数和(自身を含む): 56448000

約数和(自身を除く): 34926732

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 89, 108, 178, 267, 356, 534, 801, 1068, 1602, 2239, 2403, 3204, 4478, 4806, 6717, 8956, 9612, 13434, 20151, 26868, 40302, 60453, 80604, 120906, 199271, 241812, 398542, 597813, 797084, 1195626, 1793439, 2391252, 3586878, 5380317, 7173756, 10760634, 21521268]

約数ペア:

[(1, 21521268), (2, 10760634), (3, 7173756), (4, 5380317), (6, 3586878), (9, 2391252), (12, 1793439), (18, 1195626), (27, 797084), (36, 597813), (54, 398542), (89, 241812), (108, 199271), (178, 120906), (267, 80604), (356, 60453), (534, 40302), (801, 26868), (1068, 20151), (1602, 13434), (2239, 9612), (2403, 8956), (3204, 6717), (4478, 4806)]