21920508

素因数分解:

$2^2\times 3^2\times {\mathrm{608903}}^1$

素因数の和:608913

約数の個数: 18

約数和(自身を含む): 55410264

約数和(自身を除く): 33489756

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 608903, 1217806, 1826709, 2435612, 3653418, 5480127, 7306836, 10960254, 21920508]

約数ペア:

[(1, 21920508), (2, 10960254), (3, 7306836), (4, 5480127), (6, 3653418), (9, 2435612), (12, 1826709), (18, 1217806), (36, 608903)]