13428009

素因数分解:

$3^2\times 7^2\times {\mathrm{30449}}^1$

素因数の和:30469

約数の個数: 18

約数和(自身を含む): 22563450

約数和(自身を除く): 9135441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 30449, 91347, 213143, 274041, 639429, 1492001, 1918287, 4476003, 13428009]

約数ペア:

[(1, 13428009), (3, 4476003), (7, 1918287), (9, 1492001), (21, 639429), (49, 274041), (63, 213143), (147, 91347), (441, 30449)]