20115963

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{3847}}^1$

素因数の和:3943

約数の個数: 24

約数和(自身を含む): 33616128

約数和(自身を除く): 13500165

約数列:

[1, 3, 7, 9, 21, 63, 83, 249, 581, 747, 1743, 3847, 5229, 11541, 26929, 34623, 80787, 242361, 319301, 957903, 2235107, 2873709, 6705321, 20115963]

約数ペア:

[(1, 20115963), (3, 6705321), (7, 2873709), (9, 2235107), (21, 957903), (63, 319301), (83, 242361), (249, 80787), (581, 34623), (747, 26929), (1743, 11541), (3847, 5229)]