20398466

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{2267}}^1$

素因数の和:2689

約数の個数: 16

約数和(自身を含む): 33475680

約数和(自身を除く): 13077214

約数列:

[1, 2, 11, 22, 409, 818, 2267, 4499, 4534, 8998, 24937, 49874, 927203, 1854406, 10199233, 20398466]

約数ペア:

[(1, 20398466), (2, 10199233), (11, 1854406), (22, 927203), (409, 49874), (818, 24937), (2267, 8998), (4499, 4534)]