28239003

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1871}}^1$

素因数の和:1936

約数の個数: 32

約数和(自身を含む): 46126080

約数和(自身を除く): 17887077

約数列:

[1, 3, 9, 13, 27, 39, 43, 117, 129, 351, 387, 559, 1161, 1677, 1871, 5031, 5613, 15093, 16839, 24323, 50517, 72969, 80453, 218907, 241359, 656721, 724077, 1045889, 2172231, 3137667, 9413001, 28239003]

約数ペア:

[(1, 28239003), (3, 9413001), (9, 3137667), (13, 2172231), (27, 1045889), (39, 724077), (43, 656721), (117, 241359), (129, 218907), (351, 80453), (387, 72969), (559, 50517), (1161, 24323), (1677, 16839), (1871, 15093), (5031, 5613)]