19991816

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{192229}}^1$

素因数の和:192248

約数の個数: 16

約数和(自身を含む): 40368300

約数和(自身を除く): 20376484

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 192229, 384458, 768916, 1537832, 2498977, 4997954, 9995908, 19991816]

約数ペア:

[(1, 19991816), (2, 9995908), (4, 4997954), (8, 2498977), (13, 1537832), (26, 768916), (52, 384458), (104, 192229)]