21040188

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{134873}}^1$

素因数の和:134893

約数の個数: 24

約数和(自身を含む): 52870608

約数和(自身を除く): 31830420

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 134873, 269746, 404619, 539492, 809238, 1618476, 1753349, 3506698, 5260047, 7013396, 10520094, 21040188]

約数ペア:

[(1, 21040188), (2, 10520094), (3, 7013396), (4, 5260047), (6, 3506698), (12, 1753349), (13, 1618476), (26, 809238), (39, 539492), (52, 404619), (78, 269746), (156, 134873)]