28113309

素因数分解:

$3^2\times 7^4\times {\mathrm{1301}}^1$

素因数の和:1335

約数の個数: 30

約数和(自身を含む): 47409726

約数和(自身を除く): 19296417

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 1301, 2401, 3087, 3903, 7203, 9107, 11709, 21609, 27321, 63749, 81963, 191247, 446243, 573741, 1338729, 3123701, 4016187, 9371103, 28113309]

約数ペア:

[(1, 28113309), (3, 9371103), (7, 4016187), (9, 3123701), (21, 1338729), (49, 573741), (63, 446243), (147, 191247), (343, 81963), (441, 63749), (1029, 27321), (1301, 21609), (2401, 11709), (3087, 9107), (3903, 7203)]