18721053

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{160009}}^1$

素因数の和:160028

約数の個数: 12

約数和(自身を含む): 29121820

約数和(自身を除く): 10400767

約数列:

[1, 3, 9, 13, 39, 117, 160009, 480027, 1440081, 2080117, 6240351, 18721053]

約数ペア:

[(1, 18721053), (3, 6240351), (9, 2080117), (13, 1440081), (39, 480027), (117, 160009)]