19990022

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{2203}}^1$

素因数の和:2567

約数の個数: 16

約数和(自身を含む): 32398800

約数和(自身を除く): 12408778

約数列:

[1, 2, 13, 26, 349, 698, 2203, 4406, 4537, 9074, 28639, 57278, 768847, 1537694, 9995011, 19990022]

約数ペア:

[(1, 19990022), (2, 9995011), (13, 1537694), (26, 768847), (349, 57278), (698, 28639), (2203, 9074), (4406, 4537)]