12784205

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{15881}}^1$

素因数の和:15916

約数の個数: 16

約数和(自身を含む): 18296064

約数和(自身を除く): 5511859

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 15881, 79405, 111167, 365263, 555835, 1826315, 2556841, 12784205]

約数ペア:

[(1, 12784205), (5, 2556841), (7, 1826315), (23, 555835), (35, 365263), (115, 111167), (161, 79405), (805, 15881)]