21385731

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{401}}^1\times {\mathrm{613}}^1$

素因数の和:1046

約数の個数: 16

約数和(自身を含む): 29619360

約数和(自身を除く): 8233629

約数列:

[1, 3, 29, 87, 401, 613, 1203, 1839, 11629, 17777, 34887, 53331, 245813, 737439, 7128577, 21385731]

約数ペア:

[(1, 21385731), (3, 7128577), (29, 737439), (87, 245813), (401, 53331), (613, 34887), (1203, 17777), (1839, 11629)]