19888649

素因数分解:

${\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:293

約数の個数: 24

約数和(自身を含む): 23684640

約数和(自身を除く): 3795991

約数列:

[1, 11, 19, 41, 121, 209, 211, 451, 779, 2299, 2321, 4009, 4961, 8569, 8651, 25531, 44099, 94259, 95161, 164369, 485089, 1046771, 1808059, 19888649]

約数ペア:

[(1, 19888649), (11, 1808059), (19, 1046771), (41, 485089), (121, 164369), (209, 95161), (211, 94259), (451, 44099), (779, 25531), (2299, 8651), (2321, 8569), (4009, 4961)]