19815876

素因数分解:

$2^2\times 3^2\times {\mathrm{550441}}^1$

素因数の和:550451

約数の個数: 18

約数和(自身を含む): 50090222

約数和(自身を除く): 30274346

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 550441, 1100882, 1651323, 2201764, 3302646, 4953969, 6605292, 9907938, 19815876]

約数ペア:

[(1, 19815876), (2, 9907938), (3, 6605292), (4, 4953969), (6, 3302646), (9, 2201764), (12, 1651323), (18, 1100882), (36, 550441)]