18989467

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1493}}^1$

素因数の和:1602

約数の個数: 16

約数和(自身を含む): 22947840

約数和(自身を除く): 3958373

約数列:

[1, 7, 23, 79, 161, 553, 1493, 1817, 10451, 12719, 34339, 117947, 240373, 825629, 2712781, 18989467]

約数ペア:

[(1, 18989467), (7, 2712781), (23, 825629), (79, 240373), (161, 117947), (553, 34339), (1493, 12719), (1817, 10451)]