21216660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{353611}}^1$

素因数の和:353623

約数の個数: 24

約数和(自身を含む): 59406816

約数和(自身を除く): 38190156

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 353611, 707222, 1060833, 1414444, 1768055, 2121666, 3536110, 4243332, 5304165, 7072220, 10608330, 21216660]

約数ペア:

[(1, 21216660), (2, 10608330), (3, 7072220), (4, 5304165), (5, 4243332), (6, 3536110), (10, 2121666), (12, 1768055), (15, 1414444), (20, 1060833), (30, 707222), (60, 353611)]