18537827

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{211}}^1$

素因数の和:399

約数の個数: 24

約数和(自身を含む): 23781312

約数和(自身を除く): 5243485

約数列:

[1, 7, 11, 49, 77, 163, 211, 539, 1141, 1477, 1793, 2321, 7987, 10339, 12551, 16247, 34393, 87857, 113729, 240751, 378323, 1685257, 2648261, 18537827]

約数ペア:

[(1, 18537827), (7, 2648261), (11, 1685257), (49, 378323), (77, 240751), (163, 113729), (211, 87857), (539, 34393), (1141, 16247), (1477, 12551), (1793, 10339), (2321, 7987)]