17819757

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{12941}}^1$

素因数の和:12970

約数の個数: 20

約数和(自身を含む): 28187676

約数和(自身を除く): 10367919

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 12941, 38823, 116469, 219997, 349407, 659991, 1048221, 1979973, 5939919, 17819757]

約数ペア:

[(1, 17819757), (3, 5939919), (9, 1979973), (17, 1048221), (27, 659991), (51, 349407), (81, 219997), (153, 116469), (459, 38823), (1377, 12941)]