20978610

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{699287}}^1$

素因数の和:699297

約数の個数: 16

約数和(自身を含む): 50348736

約数和(自身を除く): 29370126

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 699287, 1398574, 2097861, 3496435, 4195722, 6992870, 10489305, 20978610]

約数ペア:

[(1, 20978610), (2, 10489305), (3, 6992870), (5, 4195722), (6, 3496435), (10, 2097861), (15, 1398574), (30, 699287)]