81401571

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{42463}}^1$

素因数の和:42543

約数の個数: 16

約数和(自身を含む): 122296320

約数和(自身を除く): 40894749

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 42463, 127389, 382167, 1146501, 3014873, 9044619, 27133857, 81401571]

約数ペア:

[(1, 81401571), (3, 27133857), (9, 9044619), (27, 3014873), (71, 1146501), (213, 382167), (639, 127389), (1917, 42463)]