18994863

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1\times {\mathrm{643}}^1$

素因数の和:918

約数の個数: 16

約数和(自身を含む): 26069120

約数和(自身を除く): 7074257

約数列:

[1, 3, 43, 129, 229, 643, 687, 1929, 9847, 27649, 29541, 82947, 147247, 441741, 6331621, 18994863]

約数ペア:

[(1, 18994863), (3, 6331621), (43, 441741), (129, 147247), (229, 82947), (643, 29541), (687, 27649), (1929, 9847)]