21268746

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{27479}}^1$

素因数の和:27530

約数の個数: 24

約数和(自身を含む): 47155680

約数和(自身を除く): 25886934

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 27479, 54958, 82437, 164874, 247311, 494622, 1181597, 2363194, 3544791, 7089582, 10634373, 21268746]

約数ペア:

[(1, 21268746), (2, 10634373), (3, 7089582), (6, 3544791), (9, 2363194), (18, 1181597), (43, 494622), (86, 247311), (129, 164874), (258, 82437), (387, 54958), (774, 27479)]