19659987

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1373}}^1$

素因数の和:1459

約数の個数: 24

約数和(自身を含む): 29865264

約数和(自身を除く): 10205277

約数列:

[1, 3, 9, 37, 43, 111, 129, 333, 387, 1373, 1591, 4119, 4773, 12357, 14319, 50801, 59039, 152403, 177117, 457209, 531351, 2184443, 6553329, 19659987]

約数ペア:

[(1, 19659987), (3, 6553329), (9, 2184443), (37, 531351), (43, 457209), (111, 177117), (129, 152403), (333, 59039), (387, 50801), (1373, 14319), (1591, 12357), (4119, 4773)]