20213901

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{937}}^1$

素因数の和:1010

約数の個数: 32

約数和(自身を含む): 32417280

約数和(自身を除く): 12203379

約数列:

[1, 3, 9, 17, 27, 47, 51, 141, 153, 423, 459, 799, 937, 1269, 2397, 2811, 7191, 8433, 15929, 21573, 25299, 44039, 47787, 132117, 143361, 396351, 430083, 748663, 1189053, 2245989, 6737967, 20213901]

約数ペア:

[(1, 20213901), (3, 6737967), (9, 2245989), (17, 1189053), (27, 748663), (47, 430083), (51, 396351), (141, 143361), (153, 132117), (423, 47787), (459, 44039), (799, 25299), (937, 21573), (1269, 15929), (2397, 8433), (2811, 7191)]