20964276

素因数分解:

$2^2\times 3^2\times {\mathrm{661}}^1\times {\mathrm{881}}^1$

素因数の和:1552

約数の個数: 36

約数和(自身を含む): 53133444

約数和(自身を除く): 32169168

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 661, 881, 1322, 1762, 1983, 2643, 2644, 3524, 3966, 5286, 5949, 7929, 7932, 10572, 11898, 15858, 23796, 31716, 582341, 1164682, 1747023, 2329364, 3494046, 5241069, 6988092, 10482138, 20964276]

約数ペア:

[(1, 20964276), (2, 10482138), (3, 6988092), (4, 5241069), (6, 3494046), (9, 2329364), (12, 1747023), (18, 1164682), (36, 582341), (661, 31716), (881, 23796), (1322, 15858), (1762, 11898), (1983, 10572), (2643, 7932), (2644, 7929), (3524, 5949), (3966, 5286)]