256260249

素因数分解:

$3^2\times 7^2\times {\mathrm{581089}}^1$

素因数の和:581109

約数の個数: 18

約数和(自身を含む): 430587690

約数和(自身を除く): 174327441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 581089, 1743267, 4067623, 5229801, 12202869, 28473361, 36608607, 85420083, 256260249]

約数ペア:

[(1, 256260249), (3, 85420083), (7, 36608607), (9, 28473361), (21, 12202869), (49, 5229801), (63, 4067623), (147, 1743267), (441, 581089)]