18857763

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{409}}^1$

素因数の和:571

約数の個数: 24

約数和(自身を含む): 28142400

約数和(自身を除く): 9284637

約数列:

[1, 3, 9, 47, 109, 141, 327, 409, 423, 981, 1227, 3681, 5123, 15369, 19223, 44581, 46107, 57669, 133743, 173007, 401229, 2095307, 6285921, 18857763]

約数ペア:

[(1, 18857763), (3, 6285921), (9, 2095307), (47, 401229), (109, 173007), (141, 133743), (327, 57669), (409, 46107), (423, 44581), (981, 19223), (1227, 15369), (3681, 5123)]