20887578

素因数分解:

$2^1\times 3^3\times {\mathrm{503}}^1\times {\mathrm{769}}^1$

素因数の和:1283

約数の個数: 32

約数和(自身を含む): 46569600

約数和(自身を除く): 25682022

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 503, 769, 1006, 1509, 1538, 2307, 3018, 4527, 4614, 6921, 9054, 13581, 13842, 20763, 27162, 41526, 386807, 773614, 1160421, 2320842, 3481263, 6962526, 10443789, 20887578]

約数ペア:

[(1, 20887578), (2, 10443789), (3, 6962526), (6, 3481263), (9, 2320842), (18, 1160421), (27, 773614), (54, 386807), (503, 41526), (769, 27162), (1006, 20763), (1509, 13842), (1538, 13581), (2307, 9054), (3018, 6921), (4527, 4614)]