20784568

素因数分解:

$2^3\times 7^1\times {\mathrm{371153}}^1$

素因数の和:371166

約数の個数: 16

約数和(自身を含む): 44538480

約数和(自身を除く): 23753912

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 371153, 742306, 1484612, 2598071, 2969224, 5196142, 10392284, 20784568]

約数ペア:

[(1, 20784568), (2, 10392284), (4, 5196142), (7, 2969224), (8, 2598071), (14, 1484612), (28, 742306), (56, 371153)]