18781321

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1\times {\mathrm{211}}^1$

素因数の和:432

約数の個数: 16

約数和(自身を含む): 20942208

約数和(自身を除く): 2160887

約数列:

[1, 13, 41, 167, 211, 533, 2171, 2743, 6847, 8651, 35237, 89011, 112463, 458081, 1444717, 18781321]

約数ペア:

[(1, 18781321), (13, 1444717), (41, 458081), (167, 112463), (211, 89011), (533, 35237), (2171, 8651), (2743, 6847)]