20820872

素因数分解:

$2^3\times {\mathrm{787}}^1\times {\mathrm{3307}}^1$

素因数の和:4100

約数の個数: 16

約数和(自身を含む): 39100560

約数和(自身を除く): 18279688

約数列:

[1, 2, 4, 8, 787, 1574, 3148, 3307, 6296, 6614, 13228, 26456, 2602609, 5205218, 10410436, 20820872]

約数ペア:

[(1, 20820872), (2, 10410436), (4, 5205218), (8, 2602609), (787, 26456), (1574, 13228), (3148, 6614), (3307, 6296)]