19212220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{9511}}^1$

素因数の和:9621

約数の個数: 24

約数和(自身を含む): 40749408

約数和(自身を除く): 21537188

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 9511, 19022, 38044, 47555, 95110, 190220, 960611, 1921222, 3842444, 4803055, 9606110, 19212220]

約数ペア:

[(1, 19212220), (2, 9606110), (4, 4803055), (5, 3842444), (10, 1921222), (20, 960611), (101, 190220), (202, 95110), (404, 47555), (505, 38044), (1010, 19022), (2020, 9511)]