21193668

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{13691}}^1$

素因数の和:13744

約数の個数: 36

約数和(自身を含む): 54822768

約数和(自身を除く): 33629100

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 13691, 27382, 41073, 54764, 82146, 123219, 164292, 246438, 492876, 588713, 1177426, 1766139, 2354852, 3532278, 5298417, 7064556, 10596834, 21193668]

約数ペア:

[(1, 21193668), (2, 10596834), (3, 7064556), (4, 5298417), (6, 3532278), (9, 2354852), (12, 1766139), (18, 1177426), (36, 588713), (43, 492876), (86, 246438), (129, 164292), (172, 123219), (258, 82146), (387, 54764), (516, 41073), (774, 27382), (1548, 13691)]