21118878

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{106661}}^1$

素因数の和:106680

約数の個数: 24

約数和(自身を含む): 49917816

約数和(自身を除く): 28798938

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 106661, 213322, 319983, 639966, 959949, 1173271, 1919898, 2346542, 3519813, 7039626, 10559439, 21118878]

約数ペア:

[(1, 21118878), (2, 10559439), (3, 7039626), (6, 3519813), (9, 2346542), (11, 1919898), (18, 1173271), (22, 959949), (33, 639966), (66, 319983), (99, 213322), (198, 106661)]