21950757

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{839}}^1$

素因数の和:887

約数の個数: 40

約数和(自身を含む): 36590400

約数和(自身を除く): 14639643

約数列:

[1, 3, 9, 17, 19, 27, 51, 57, 81, 153, 171, 323, 459, 513, 839, 969, 1377, 1539, 2517, 2907, 7551, 8721, 14263, 15941, 22653, 26163, 42789, 47823, 67959, 128367, 143469, 270997, 385101, 430407, 812991, 1155303, 1291221, 2438973, 7316919, 21950757]

約数ペア:

[(1, 21950757), (3, 7316919), (9, 2438973), (17, 1291221), (19, 1155303), (27, 812991), (51, 430407), (57, 385101), (81, 270997), (153, 143469), (171, 128367), (323, 67959), (459, 47823), (513, 42789), (839, 26163), (969, 22653), (1377, 15941), (1539, 14263), (2517, 8721), (2907, 7551)]