20780786

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{853}}^1\times {\mathrm{937}}^1$

素因数の和:1805

約数の個数: 16

約数和(自身を含む): 33644184

約数和(自身を除く): 12863398

約数列:

[1, 2, 13, 26, 853, 937, 1706, 1874, 11089, 12181, 22178, 24362, 799261, 1598522, 10390393, 20780786]

約数ペア:

[(1, 20780786), (2, 10390393), (13, 1598522), (26, 799261), (853, 24362), (937, 22178), (1706, 12181), (1874, 11089)]