19805868

素因数分解:

$2^2\times 3^2\times {\mathrm{550163}}^1$

素因数の和:550173

約数の個数: 18

約数和(自身を含む): 50064924

約数和(自身を除く): 30259056

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 550163, 1100326, 1650489, 2200652, 3300978, 4951467, 6601956, 9902934, 19805868]

約数ペア:

[(1, 19805868), (2, 9902934), (3, 6601956), (4, 4951467), (6, 3300978), (9, 2200652), (12, 1650489), (18, 1100326), (36, 550163)]