81780231

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{23561}}^1$

素因数の和:23666

約数の個数: 16

約数和(自身を含む): 118752480

約数和(自身を除く): 36972249

約数列:

[1, 3, 13, 39, 89, 267, 1157, 3471, 23561, 70683, 306293, 918879, 2096929, 6290787, 27260077, 81780231]

約数ペア:

[(1, 81780231), (3, 27260077), (13, 6290787), (39, 2096929), (89, 918879), (267, 306293), (1157, 70683), (3471, 23561)]