21889105

素因数分解:

$5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{7027}}^1$

素因数の和:7128

約数の個数: 16

約数和(自身を含む): 30360960

約数和(自身を除く): 8471855

約数列:

[1, 5, 7, 35, 89, 445, 623, 3115, 7027, 35135, 49189, 245945, 625403, 3127015, 4377821, 21889105]

約数ペア:

[(1, 21889105), (5, 4377821), (7, 3127015), (35, 625403), (89, 245945), (445, 49189), (623, 35135), (3115, 7027)]