20804816

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{22039}}^1$

素因数の和:22106

約数の個数: 20

約数和(自身を含む): 40994400

約数和(自身を除く): 20189584

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 22039, 44078, 88156, 176312, 352624, 1300301, 2600602, 5201204, 10402408, 20804816]

約数ペア:

[(1, 20804816), (2, 10402408), (4, 5201204), (8, 2600602), (16, 1300301), (59, 352624), (118, 176312), (236, 88156), (472, 44078), (944, 22039)]