19866992

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{8933}}^1$

素因数の和:9080

約数の個数: 20

約数和(自身を含む): 38773560

約数和(自身を除く): 18906568

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 8933, 17866, 35732, 71464, 142928, 1241687, 2483374, 4966748, 9933496, 19866992]

約数ペア:

[(1, 19866992), (2, 9933496), (4, 4966748), (8, 2483374), (16, 1241687), (139, 142928), (278, 71464), (556, 35732), (1112, 17866), (2224, 8933)]