19991718

素因数分解:

$2^1\times 3^3\times {\mathrm{370217}}^1$

素因数の和:370228

約数の個数: 16

約数和(自身を含む): 44426160

約数和(自身を除く): 24434442

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 370217, 740434, 1110651, 2221302, 3331953, 6663906, 9995859, 19991718]

約数ペア:

[(1, 19991718), (2, 9995859), (3, 6663906), (6, 3331953), (9, 2221302), (18, 1110651), (27, 740434), (54, 370217)]