21131580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{352193}}^1$

素因数の和:352205

約数の個数: 24

約数和(自身を含む): 59168592

約数和(自身を除く): 38037012

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 352193, 704386, 1056579, 1408772, 1760965, 2113158, 3521930, 4226316, 5282895, 7043860, 10565790, 21131580]

約数ペア:

[(1, 21131580), (2, 10565790), (3, 7043860), (4, 5282895), (5, 4226316), (6, 3521930), (10, 2113158), (12, 1760965), (15, 1408772), (20, 1056579), (30, 704386), (60, 352193)]