21140163

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:169

約数の個数: 64

約数和(自身を含む): 37324800

約数和(自身を除く): 16184637

約数列:

[1, 3, 9, 11, 17, 27, 33, 51, 53, 79, 99, 153, 159, 187, 237, 297, 459, 477, 561, 583, 711, 869, 901, 1343, 1431, 1683, 1749, 2133, 2607, 2703, 4029, 4187, 5049, 5247, 7821, 8109, 9911, 12087, 12561, 14773, 15741, 23463, 24327, 29733, 36261, 37683, 44319, 46057, 71179, 89199, 113049, 132957, 138171, 213537, 267597, 398871, 414513, 640611, 782969, 1243539, 1921833, 2348907, 7046721, 21140163]

約数ペア:

[(1, 21140163), (3, 7046721), (9, 2348907), (11, 1921833), (17, 1243539), (27, 782969), (33, 640611), (51, 414513), (53, 398871), (79, 267597), (99, 213537), (153, 138171), (159, 132957), (187, 113049), (237, 89199), (297, 71179), (459, 46057), (477, 44319), (561, 37683), (583, 36261), (711, 29733), (869, 24327), (901, 23463), (1343, 15741), (1431, 14773), (1683, 12561), (1749, 12087), (2133, 9911), (2607, 8109), (2703, 7821), (4029, 5247), (4187, 5049)]