18995187

素因数分解:

$3^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1\times {\mathrm{409}}^1$

素因数の和:662

約数の個数: 16

約数和(自身を含む): 25800480

約数和(自身を除く): 6805293

約数列:

[1, 3, 113, 137, 339, 409, 411, 1227, 15481, 46217, 46443, 56033, 138651, 168099, 6331729, 18995187]

約数ペア:

[(1, 18995187), (3, 6331729), (113, 168099), (137, 138651), (339, 56033), (409, 46443), (411, 46217), (1227, 15481)]