18321345

素因数分解:

$3^2\times 5^1\times 7^3\times {\mathrm{1187}}^1$

素因数の和:1219

約数の個数: 48

約数和(自身を含む): 37065600

約数和(自身を除く): 18744255

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 343, 441, 735, 1029, 1187, 1715, 2205, 3087, 3561, 5145, 5935, 8309, 10683, 15435, 17805, 24927, 41545, 53415, 58163, 74781, 124635, 174489, 290815, 373905, 407141, 523467, 872445, 1221423, 2035705, 2617335, 3664269, 6107115, 18321345]

約数ペア:

[(1, 18321345), (3, 6107115), (5, 3664269), (7, 2617335), (9, 2035705), (15, 1221423), (21, 872445), (35, 523467), (45, 407141), (49, 373905), (63, 290815), (105, 174489), (147, 124635), (245, 74781), (315, 58163), (343, 53415), (441, 41545), (735, 24927), (1029, 17805), (1187, 15435), (1715, 10683), (2205, 8309), (3087, 5935), (3561, 5145)]