12886855

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1171}}^1$

素因数の和:1278

約数の個数: 16

約数和(自身を含む): 16201728

約数和(自身を除く): 3314873

約数列:

[1, 5, 31, 71, 155, 355, 1171, 2201, 5855, 11005, 36301, 83141, 181505, 415705, 2577371, 12886855]

約数ペア:

[(1, 12886855), (5, 2577371), (31, 415705), (71, 181505), (155, 83141), (355, 36301), (1171, 11005), (2201, 5855)]