20957804

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{44029}}^1$

素因数の和:44057

約数の個数: 24

約数和(自身を含む): 44382240

約数和(自身を除く): 23424436

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 44029, 88058, 176116, 308203, 616406, 748493, 1232812, 1496986, 2993972, 5239451, 10478902, 20957804]

約数ペア:

[(1, 20957804), (2, 10478902), (4, 5239451), (7, 2993972), (14, 1496986), (17, 1232812), (28, 748493), (34, 616406), (68, 308203), (119, 176116), (238, 88058), (476, 44029)]