20764191

素因数分解:

$3^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{1187}}^1$

素因数の和:1228

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 13450209

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 343, 357, 833, 1029, 1187, 2499, 3561, 5831, 8309, 17493, 20179, 24927, 58163, 60537, 141253, 174489, 407141, 423759, 988771, 1221423, 2966313, 6921397, 20764191]

約数ペア:

[(1, 20764191), (3, 6921397), (7, 2966313), (17, 1221423), (21, 988771), (49, 423759), (51, 407141), (119, 174489), (147, 141253), (343, 60537), (357, 58163), (833, 24927), (1029, 20179), (1187, 17493), (2499, 8309), (3561, 5831)]