21002508

素因数分解:

$2^2\times 3^2\times {\mathrm{583403}}^1$

素因数の和:583413

約数の個数: 18

約数和(自身を含む): 53089764

約数和(自身を除く): 32087256

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 583403, 1166806, 1750209, 2333612, 3500418, 5250627, 7000836, 10501254, 21002508]

約数ペア:

[(1, 21002508), (2, 10501254), (3, 7000836), (4, 5250627), (6, 3500418), (9, 2333612), (12, 1750209), (18, 1166806), (36, 583403)]