19731397

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^2\times {\mathrm{71}}^1$

素因数の和:181

約数の個数: 24

約数和(自身を含む): 24312960

約数和(自身を除く): 4581563

約数列:

[1, 7, 29, 37, 71, 203, 259, 497, 1073, 1369, 2059, 2627, 7511, 9583, 14413, 18389, 39701, 76183, 97199, 277907, 533281, 680393, 2818771, 19731397]

約数ペア:

[(1, 19731397), (7, 2818771), (29, 680393), (37, 533281), (71, 277907), (203, 97199), (259, 76183), (497, 39701), (1073, 18389), (1369, 14413), (2059, 9583), (2627, 7511)]