20688564

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{132619}}^1$

素因数の和:132639

約数の個数: 24

約数和(自身を含む): 51987040

約数和(自身を除く): 31298476

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 132619, 265238, 397857, 530476, 795714, 1591428, 1724047, 3448094, 5172141, 6896188, 10344282, 20688564]

約数ペア:

[(1, 20688564), (2, 10344282), (3, 6896188), (4, 5172141), (6, 3448094), (12, 1724047), (13, 1591428), (26, 795714), (39, 530476), (52, 397857), (78, 265238), (156, 132619)]