18020919

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{233}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 28753920

約数和(自身を除く): 10733001

約数列:

[1, 3, 7, 21, 29, 87, 127, 203, 233, 381, 609, 699, 889, 1631, 2667, 3683, 4893, 6757, 11049, 20271, 25781, 29591, 47299, 77343, 88773, 141897, 207137, 621411, 858139, 2574417, 6006973, 18020919]

約数ペア:

[(1, 18020919), (3, 6006973), (7, 2574417), (21, 858139), (29, 621411), (87, 207137), (127, 141897), (203, 88773), (233, 77343), (381, 47299), (609, 29591), (699, 25781), (889, 20271), (1631, 11049), (2667, 6757), (3683, 4893)]