20986448

素因数分解:

$2^4\times 7^1\times {\mathrm{187379}}^1$

素因数の和:187394

約数の個数: 20

約数和(自身を含む): 46470240

約数和(自身を除く): 25483792

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 187379, 374758, 749516, 1311653, 1499032, 2623306, 2998064, 5246612, 10493224, 20986448]

約数ペア:

[(1, 20986448), (2, 10493224), (4, 5246612), (7, 2998064), (8, 2623306), (14, 1499032), (16, 1311653), (28, 749516), (56, 374758), (112, 187379)]