18904137

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{39139}}^1$

素因数の和:39172

約数の個数: 16

約数和(自身を含む): 30059520

約数和(自身を除く): 11155383

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 39139, 117417, 273973, 821919, 900197, 2700591, 6301379, 18904137]

約数ペア:

[(1, 18904137), (3, 6301379), (7, 2700591), (21, 900197), (23, 821919), (69, 273973), (161, 117417), (483, 39139)]