18937243

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1783}}^1$

素因数の和:1858

約数の個数: 16

約数和(自身を含む): 21978880

約数和(自身を除く): 3041637

約数列:

[1, 13, 19, 43, 247, 559, 817, 1783, 10621, 23179, 33877, 76669, 440401, 996697, 1456711, 18937243]

約数ペア:

[(1, 18937243), (13, 1456711), (19, 996697), (43, 440401), (247, 76669), (559, 33877), (817, 23179), (1783, 10621)]