21118768

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{119993}}^1$

素因数の和:120012

約数の個数: 20

約数和(自身を含む): 44637768

約数和(自身を除く): 23519000

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 119993, 239986, 479972, 959944, 1319923, 1919888, 2639846, 5279692, 10559384, 21118768]

約数ペア:

[(1, 21118768), (2, 10559384), (4, 5279692), (8, 2639846), (11, 1919888), (16, 1319923), (22, 959944), (44, 479972), (88, 239986), (176, 119993)]