20423931

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{379}}^1$

素因数の和:487

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 11094789

約数列:

[1, 3, 11, 23, 33, 69, 71, 213, 253, 379, 759, 781, 1137, 1633, 2343, 4169, 4899, 8717, 12507, 17963, 26151, 26909, 53889, 80727, 95887, 287661, 295999, 618907, 887997, 1856721, 6807977, 20423931]

約数ペア:

[(1, 20423931), (3, 6807977), (11, 1856721), (23, 887997), (33, 618907), (69, 295999), (71, 287661), (213, 95887), (253, 80727), (379, 53889), (759, 26909), (781, 26151), (1137, 17963), (1633, 12507), (2343, 8717), (4169, 4899)]