20518365

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{195413}}^1$

素因数の和:195428

約数の個数: 16

約数和(自身を含む): 37519488

約数和(自身を除く): 17001123

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 195413, 586239, 977065, 1367891, 2931195, 4103673, 6839455, 20518365]

約数ペア:

[(1, 20518365), (3, 6839455), (5, 4103673), (7, 2931195), (15, 1367891), (21, 977065), (35, 586239), (105, 195413)]