18997244

素因数分解:

$2^2\times 7^1\times {\mathrm{397}}^1\times {\mathrm{1709}}^1$

素因数の和:2117

約数の個数: 24

約数和(自身を含む): 38112480

約数和(自身を除く): 19115236

約数列:

[1, 2, 4, 7, 14, 28, 397, 794, 1588, 1709, 2779, 3418, 5558, 6836, 11116, 11963, 23926, 47852, 678473, 1356946, 2713892, 4749311, 9498622, 18997244]

約数ペア:

[(1, 18997244), (2, 9498622), (4, 4749311), (7, 2713892), (14, 1356946), (28, 678473), (397, 47852), (794, 23926), (1588, 11963), (1709, 11116), (2779, 6836), (3418, 5558)]