21547540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{153911}}^1$

素因数の和:153927

約数の個数: 24

約数和(自身を含む): 51714432

約数和(自身を除く): 30166892

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 153911, 307822, 615644, 769555, 1077377, 1539110, 2154754, 3078220, 4309508, 5386885, 10773770, 21547540]

約数ペア:

[(1, 21547540), (2, 10773770), (4, 5386885), (5, 4309508), (7, 3078220), (10, 2154754), (14, 1539110), (20, 1077377), (28, 769555), (35, 615644), (70, 307822), (140, 153911)]