18211508

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20981}}^1$

素因数の和:21023

約数の個数: 24

約数和(自身を含む): 37599744

約数和(自身を除く): 19388236

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 20981, 41962, 83924, 146867, 293734, 587468, 650411, 1300822, 2601644, 4552877, 9105754, 18211508]

約数ペア:

[(1, 18211508), (2, 9105754), (4, 4552877), (7, 2601644), (14, 1300822), (28, 650411), (31, 587468), (62, 293734), (124, 146867), (217, 83924), (434, 41962), (868, 20981)]