21000739212

素因数分解:

$2^2\times 3^3\times {\mathrm{43}}^1\times {\mathrm{4522123}}^1$

素因数の和:4522179

約数の個数: 48

約数和(自身を含む): 55712567680

約数和(自身を除く): 34711828468

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 43, 54, 86, 108, 129, 172, 258, 387, 516, 774, 1161, 1548, 2322, 4644, 4522123, 9044246, 13566369, 18088492, 27132738, 40699107, 54265476, 81398214, 122097321, 162796428, 194451289, 244194642, 388902578, 488389284, 583353867, 777805156, 1166707734, 1750061601, 2333415468, 3500123202, 5250184803, 7000246404, 10500369606, 21000739212]

約数ペア:

[(1, 21000739212), (2, 10500369606), (3, 7000246404), (4, 5250184803), (6, 3500123202), (9, 2333415468), (12, 1750061601), (18, 1166707734), (27, 777805156), (36, 583353867), (43, 488389284), (54, 388902578), (86, 244194642), (108, 194451289), (129, 162796428), (172, 122097321), (258, 81398214), (387, 54265476), (516, 40699107), (774, 27132738), (1161, 18088492), (1548, 13566369), (2322, 9044246), (4644, 4522123)]