20820464

素因数分解:

$2^4\times 7^1\times {\mathrm{185897}}^1$

素因数の和:185912

約数の個数: 20

約数和(自身を含む): 46102704

約数和(自身を除く): 25282240

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 185897, 371794, 743588, 1301279, 1487176, 2602558, 2974352, 5205116, 10410232, 20820464]

約数ペア:

[(1, 20820464), (2, 10410232), (4, 5205116), (7, 2974352), (8, 2602558), (14, 1487176), (16, 1301279), (28, 743588), (56, 371794), (112, 185897)]