621331479

素因数分解:

$3^4\times {\mathrm{2657}}^1\times {\mathrm{2887}}^1$

素因数の和:5556

約数の個数: 20

約数和(自身を含む): 928832784

約数和(自身を除く): 307501305

約数列:

[1, 3, 9, 27, 81, 2657, 2887, 7971, 8661, 23913, 25983, 71739, 77949, 215217, 233847, 7670759, 23012277, 69036831, 207110493, 621331479]

約数ペア:

[(1, 621331479), (3, 207110493), (9, 69036831), (27, 23012277), (81, 7670759), (2657, 233847), (2887, 215217), (7971, 77949), (8661, 71739), (23913, 25983)]