21236238

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{27437}}^1$

素因数の和:27488

約数の個数: 24

約数和(自身を含む): 47083608

約数和(自身を除く): 25847370

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 27437, 54874, 82311, 164622, 246933, 493866, 1179791, 2359582, 3539373, 7078746, 10618119, 21236238]

約数ペア:

[(1, 21236238), (2, 10618119), (3, 7078746), (6, 3539373), (9, 2359582), (18, 1179791), (43, 493866), (86, 246933), (129, 164622), (258, 82311), (387, 54874), (774, 27437)]