20907864

素因数分解:

$2^3\times 3^2\times {\mathrm{53}}^1\times {\mathrm{5479}}^1$

素因数の和:5544

約数の個数: 48

約数和(自身を含む): 57704400

約数和(自身を除く): 36796536

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 53, 72, 106, 159, 212, 318, 424, 477, 636, 954, 1272, 1908, 3816, 5479, 10958, 16437, 21916, 32874, 43832, 49311, 65748, 98622, 131496, 197244, 290387, 394488, 580774, 871161, 1161548, 1742322, 2323096, 2613483, 3484644, 5226966, 6969288, 10453932, 20907864]

約数ペア:

[(1, 20907864), (2, 10453932), (3, 6969288), (4, 5226966), (6, 3484644), (8, 2613483), (9, 2323096), (12, 1742322), (18, 1161548), (24, 871161), (36, 580774), (53, 394488), (72, 290387), (106, 197244), (159, 131496), (212, 98622), (318, 65748), (424, 49311), (477, 43832), (636, 32874), (954, 21916), (1272, 16437), (1908, 10958), (3816, 5479)]