20051889

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1087}}^1$

素因数の和:1157

約数の個数: 32

約数和(自身を含む): 32169984

約数和(自身を除く): 12118095

約数列:

[1, 3, 11, 13, 33, 39, 43, 129, 143, 429, 473, 559, 1087, 1419, 1677, 3261, 6149, 11957, 14131, 18447, 35871, 42393, 46741, 140223, 155441, 466323, 514151, 607633, 1542453, 1822899, 6683963, 20051889]

約数ペア:

[(1, 20051889), (3, 6683963), (11, 1822899), (13, 1542453), (33, 607633), (39, 514151), (43, 466323), (129, 155441), (143, 140223), (429, 46741), (473, 42393), (559, 35871), (1087, 18447), (1419, 14131), (1677, 11957), (3261, 6149)]