21803004

素因数分解:

$2^2\times 3^2\times {\mathrm{605639}}^1$

素因数の和:605649

約数の個数: 18

約数和(自身を含む): 55113240

約数和(自身を除く): 33310236

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 605639, 1211278, 1816917, 2422556, 3633834, 5450751, 7267668, 10901502, 21803004]

約数ペア:

[(1, 21803004), (2, 10901502), (3, 7267668), (4, 5450751), (6, 3633834), (9, 2422556), (12, 1816917), (18, 1211278), (36, 605639)]