18908043

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{81853}}^1$

素因数の和:81874

約数の個数: 16

約数和(自身を含む): 31431936

約数和(自身を除く): 12523893

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 81853, 245559, 572971, 900383, 1718913, 2701149, 6302681, 18908043]

約数ペア:

[(1, 18908043), (3, 6302681), (7, 2701149), (11, 1718913), (21, 900383), (33, 572971), (77, 245559), (231, 81853)]