20804557697

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{487}}^1\times {\mathrm{554803}}^1$

素因数の和:555308

約数の個数: 16

約数和(自身を含む): 25991457792

約数和(自身を除く): 5186900095

約数列:

[1, 7, 11, 77, 487, 3409, 5357, 37499, 554803, 3883621, 6102833, 42719831, 270189061, 1891323427, 2972079671, 20804557697]

約数ペア:

[(1, 20804557697), (7, 2972079671), (11, 1891323427), (77, 270189061), (487, 42719831), (3409, 6102833), (5357, 3883621), (37499, 554803)]