21081927

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{443}}^1\times {\mathrm{547}}^1$

素因数の和:1022

約数の個数: 16

約数和(自身を含む): 29197440

約数和(自身を除く): 8115513

約数列:

[1, 3, 29, 87, 443, 547, 1329, 1641, 12847, 15863, 38541, 47589, 242321, 726963, 7027309, 21081927]

約数ペア:

[(1, 21081927), (3, 7027309), (29, 726963), (87, 242321), (443, 47589), (547, 38541), (1329, 15863), (1641, 12847)]