18520371856

素因数分解:

$2^4\times 7^1\times {\mathrm{241}}^1\times {\mathrm{686143}}^1$

素因数の和:686399

約数の個数: 40

約数和(自身を含む): 41179618304

約数和(自身を除く): 22659246448

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 241, 482, 964, 1687, 1928, 3374, 3856, 6748, 13496, 26992, 686143, 1372286, 2744572, 4803001, 5489144, 9606002, 10978288, 19212004, 38424008, 76848016, 165360463, 330720926, 661441852, 1157523241, 1322883704, 2315046482, 2645767408, 4630092964, 9260185928, 18520371856]

約数ペア:

[(1, 18520371856), (2, 9260185928), (4, 4630092964), (7, 2645767408), (8, 2315046482), (14, 1322883704), (16, 1157523241), (28, 661441852), (56, 330720926), (112, 165360463), (241, 76848016), (482, 38424008), (964, 19212004), (1687, 10978288), (1928, 9606002), (3374, 5489144), (3856, 4803001), (6748, 2744572), (13496, 1372286), (26992, 686143)]