19013740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22109}}^1$

素因数の和:22161

約数の個数: 24

約数和(自身を含む): 40859280

約数和(自身を除く): 21845540

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 22109, 44218, 88436, 110545, 221090, 442180, 950687, 1901374, 3802748, 4753435, 9506870, 19013740]

約数ペア:

[(1, 19013740), (2, 9506870), (4, 4753435), (5, 3802748), (10, 1901374), (20, 950687), (43, 442180), (86, 221090), (172, 110545), (215, 88436), (430, 44218), (860, 22109)]