20797119

素因数分解:

$3^2\times 7^3\times {\mathrm{6737}}^1$

素因数の和:6764

約数の個数: 24

約数和(自身を含む): 35037600

約数和(自身を除く): 14240481

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 6737, 20211, 47159, 60633, 141477, 330113, 424431, 990339, 2310791, 2971017, 6932373, 20797119]

約数ペア:

[(1, 20797119), (3, 6932373), (7, 2971017), (9, 2310791), (21, 990339), (49, 424431), (63, 330113), (147, 141477), (343, 60633), (441, 47159), (1029, 20211), (3087, 6737)]