16979238

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{21937}}^1$

素因数の和:21988

約数の個数: 24

約数和(自身を含む): 37645608

約数和(自身を除く): 20666370

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 21937, 43874, 65811, 131622, 197433, 394866, 943291, 1886582, 2829873, 5659746, 8489619, 16979238]

約数ペア:

[(1, 16979238), (2, 8489619), (3, 5659746), (6, 2829873), (9, 1886582), (18, 943291), (43, 394866), (86, 197433), (129, 131622), (258, 65811), (387, 43874), (774, 21937)]