18667089

素因数分解:

$3^2\times 7^3\times {\mathrm{6047}}^1$

素因数の和:6074

約数の個数: 24

約数和(自身を含む): 31449600

約数和(自身を除く): 12782511

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 6047, 18141, 42329, 54423, 126987, 296303, 380961, 888909, 2074121, 2666727, 6222363, 18667089]

約数ペア:

[(1, 18667089), (3, 6222363), (7, 2666727), (9, 2074121), (21, 888909), (49, 380961), (63, 296303), (147, 126987), (343, 54423), (441, 42329), (1029, 18141), (3087, 6047)]