19680778

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{32911}}^1$

素因数の和:32949

約数の個数: 16

約数和(自身を含む): 33175296

約数和(自身を除く): 13494518

約数列:

[1, 2, 13, 23, 26, 46, 299, 598, 32911, 65822, 427843, 756953, 855686, 1513906, 9840389, 19680778]

約数ペア:

[(1, 19680778), (2, 9840389), (13, 1513906), (23, 855686), (26, 756953), (46, 427843), (299, 65822), (598, 32911)]