20387169

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:318

約数の個数: 36

約数和(自身を含む): 32871748

約数和(自身を除く): 12484579

約数列:

[1, 3, 9, 11, 33, 97, 99, 121, 193, 291, 363, 579, 873, 1067, 1089, 1737, 2123, 3201, 6369, 9603, 11737, 18721, 19107, 23353, 35211, 56163, 70059, 105633, 168489, 205931, 210177, 617793, 1853379, 2265241, 6795723, 20387169]

約数ペア:

[(1, 20387169), (3, 6795723), (9, 2265241), (11, 1853379), (33, 617793), (97, 210177), (99, 205931), (121, 168489), (193, 105633), (291, 70059), (363, 56163), (579, 35211), (873, 23353), (1067, 19107), (1089, 18721), (1737, 11737), (2123, 9603), (3201, 6369)]