28201527

素因数分解:

$3^4\times {\mathrm{421}}^1\times {\mathrm{827}}^1$

素因数の和:1260

約数の個数: 20

約数和(自身を含む): 42279336

約数和(自身を除く): 14077809

約数列:

[1, 3, 9, 27, 81, 421, 827, 1263, 2481, 3789, 7443, 11367, 22329, 34101, 66987, 348167, 1044501, 3133503, 9400509, 28201527]

約数ペア:

[(1, 28201527), (3, 9400509), (9, 3133503), (27, 1044501), (81, 348167), (421, 66987), (827, 34101), (1263, 22329), (2481, 11367), (3789, 7443)]