27720563

素因数分解:

${\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:231

約数の個数: 24

約数和(自身を含む): 32281200

約数和(自身を除く): 4560637

約数列:

[1, 13, 19, 89, 97, 169, 247, 1157, 1261, 1691, 1843, 3211, 8633, 15041, 16393, 21983, 23959, 112229, 164027, 285779, 311467, 1458977, 2132351, 27720563]

約数ペア:

[(1, 27720563), (13, 2132351), (19, 1458977), (89, 311467), (97, 285779), (169, 164027), (247, 112229), (1157, 23959), (1261, 21983), (1691, 16393), (1843, 15041), (3211, 8633)]