21668508

素因数分解:

$2^2\times 3^2\times {\mathrm{601903}}^1$

素因数の和:601913

約数の個数: 18

約数和(自身を含む): 54773264

約数和(自身を除く): 33104756

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 601903, 1203806, 1805709, 2407612, 3611418, 5417127, 7222836, 10834254, 21668508]

約数ペア:

[(1, 21668508), (2, 10834254), (3, 7222836), (4, 5417127), (6, 3611418), (9, 2407612), (12, 1805709), (18, 1203806), (36, 601903)]