19287681

素因数分解:

$3^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{2131}}^1$

素因数の和:2572

約数の個数: 16

約数和(自身を含む): 29472768

約数和(自身を除く): 10185087

約数列:

[1, 3, 7, 21, 431, 1293, 2131, 3017, 6393, 9051, 14917, 44751, 918461, 2755383, 6429227, 19287681]

約数ペア:

[(1, 19287681), (3, 6429227), (7, 2755383), (21, 918461), (431, 44751), (1293, 14917), (2131, 9051), (3017, 6393)]