66771271

素因数分解:

$7^2\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:415

約数の個数: 24

約数和(自身を含む): 80151120

約数和(自身を除く): 13379849

約数列:

[1, 7, 49, 61, 89, 251, 427, 623, 1757, 2989, 4361, 5429, 12299, 15311, 22339, 38003, 107177, 156373, 266021, 750239, 1094611, 1362679, 9538753, 66771271]

約数ペア:

[(1, 66771271), (7, 9538753), (49, 1362679), (61, 1094611), (89, 750239), (251, 266021), (427, 156373), (623, 107177), (1757, 38003), (2989, 22339), (4361, 15311), (5429, 12299)]