21664863

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{4129}}^1$

素因数の和:4199

約数の個数: 24

約数和(自身を含む): 34791120

約数和(自身を除く): 13126257

約数列:

[1, 3, 9, 11, 33, 53, 99, 159, 477, 583, 1749, 4129, 5247, 12387, 37161, 45419, 136257, 218837, 408771, 656511, 1969533, 2407207, 7221621, 21664863]

約数ペア:

[(1, 21664863), (3, 7221621), (9, 2407207), (11, 1969533), (33, 656511), (53, 408771), (99, 218837), (159, 136257), (477, 45419), (583, 37161), (1749, 12387), (4129, 5247)]