81645111

素因数分解:

$3^3\times {\mathrm{313}}^1\times {\mathrm{9661}}^1$

素因数の和:9983

約数の個数: 16

約数和(自身を含む): 121354720

約数和(自身を除く): 39709609

約数列:

[1, 3, 9, 27, 313, 939, 2817, 8451, 9661, 28983, 86949, 260847, 3023893, 9071679, 27215037, 81645111]

約数ペア:

[(1, 81645111), (3, 27215037), (9, 9071679), (27, 3023893), (313, 260847), (939, 86949), (2817, 28983), (8451, 9661)]