20971863

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{733}}^1$

素因数の和:784

約数の個数: 36

約数和(自身を含む): 35152728

約数和(自身を除く): 14180865

約数列:

[1, 3, 9, 11, 17, 33, 51, 99, 153, 187, 289, 561, 733, 867, 1683, 2199, 2601, 3179, 6597, 8063, 9537, 12461, 24189, 28611, 37383, 72567, 112149, 137071, 211837, 411213, 635511, 1233639, 1906533, 2330207, 6990621, 20971863]

約数ペア:

[(1, 20971863), (3, 6990621), (9, 2330207), (11, 1906533), (17, 1233639), (33, 635511), (51, 411213), (99, 211837), (153, 137071), (187, 112149), (289, 72567), (561, 37383), (733, 28611), (867, 24189), (1683, 12461), (2199, 9537), (2601, 8063), (3179, 6597)]