19473940

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8933}}^1$

素因数の和:9051

約数の個数: 24

約数和(自身を含む): 41275080

約数和(自身を除く): 21801140

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 8933, 17866, 35732, 44665, 89330, 178660, 973697, 1947394, 3894788, 4868485, 9736970, 19473940]

約数ペア:

[(1, 19473940), (2, 9736970), (4, 4868485), (5, 3894788), (10, 1947394), (20, 973697), (109, 178660), (218, 89330), (436, 44665), (545, 35732), (1090, 17866), (2180, 8933)]