20309667

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{6007}}^1$

素因数の和:6047

約数の個数: 24

約数和(自身を含む): 32875776

約数和(自身を除く): 12566109

約数列:

[1, 3, 7, 21, 23, 49, 69, 147, 161, 483, 1127, 3381, 6007, 18021, 42049, 126147, 138161, 294343, 414483, 883029, 967127, 2901381, 6769889, 20309667]

約数ペア:

[(1, 20309667), (3, 6769889), (7, 2901381), (21, 967127), (23, 883029), (49, 414483), (69, 294343), (147, 138161), (161, 126147), (483, 42049), (1127, 18021), (3381, 6007)]