218567889

素因数分解:

$3^4\times {\mathrm{127}}^1\times {\mathrm{21247}}^1$

素因数の和:21386

約数の個数: 20

約数和(自身を含む): 329089024

約数和(自身を除く): 110521135

約数列:

[1, 3, 9, 27, 81, 127, 381, 1143, 3429, 10287, 21247, 63741, 191223, 573669, 1721007, 2698369, 8095107, 24285321, 72855963, 218567889]

約数ペア:

[(1, 218567889), (3, 72855963), (9, 24285321), (27, 8095107), (81, 2698369), (127, 1721007), (381, 573669), (1143, 191223), (3429, 63741), (10287, 21247)]