28067553

素因数分解:

$3^4\times {\mathrm{419}}^1\times {\mathrm{827}}^1$

素因数の和:1258

約数の個数: 20

約数和(自身を含む): 42078960

約数和(自身を除く): 14011407

約数列:

[1, 3, 9, 27, 81, 419, 827, 1257, 2481, 3771, 7443, 11313, 22329, 33939, 66987, 346513, 1039539, 3118617, 9355851, 28067553]

約数ペア:

[(1, 28067553), (3, 9355851), (9, 3118617), (27, 1039539), (81, 346513), (419, 66987), (827, 33939), (1257, 22329), (2481, 11313), (3771, 7443)]