20727981

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{15053}}^1$

素因数の和:15082

約数の個数: 20

約数和(自身を含む): 32787612

約数和(自身を除く): 12059631

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 15053, 45159, 135477, 255901, 406431, 767703, 1219293, 2303109, 6909327, 20727981]

約数ペア:

[(1, 20727981), (3, 6909327), (9, 2303109), (17, 1219293), (27, 767703), (51, 406431), (81, 255901), (153, 135477), (459, 45159), (1377, 15053)]