20939004

素因数分解:

$2^2\times 3^2\times {\mathrm{581639}}^1$

素因数の和:581649

約数の個数: 18

約数和(自身を含む): 52929240

約数和(自身を除く): 31990236

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 581639, 1163278, 1744917, 2326556, 3489834, 5234751, 6979668, 10469502, 20939004]

約数ペア:

[(1, 20939004), (2, 10469502), (3, 6979668), (4, 5234751), (6, 3489834), (9, 2326556), (12, 1744917), (18, 1163278), (36, 581639)]