18139851

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2467}}^1$

素因数の和:2535

約数の個数: 24

約数和(自身を含む): 28233920

約数和(自身を除く): 10094069

約数列:

[1, 3, 9, 19, 43, 57, 129, 171, 387, 817, 2451, 2467, 7353, 7401, 22203, 46873, 106081, 140619, 318243, 421857, 954729, 2015539, 6046617, 18139851]

約数ペア:

[(1, 18139851), (3, 6046617), (9, 2015539), (19, 954729), (43, 421857), (57, 318243), (129, 140619), (171, 106081), (387, 46873), (817, 22203), (2451, 7401), (2467, 7353)]