19179727

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:271

約数の個数: 24

約数和(自身を含む): 23392800

約数和(自身を除く): 4213073

約数列:

[1, 7, 37, 49, 71, 149, 259, 497, 1043, 1813, 2627, 3479, 5513, 7301, 10579, 18389, 38591, 74053, 128723, 270137, 391423, 518371, 2739961, 19179727]

約数ペア:

[(1, 19179727), (7, 2739961), (37, 518371), (49, 391423), (71, 270137), (149, 128723), (259, 74053), (497, 38591), (1043, 18389), (1813, 10579), (2627, 7301), (3479, 5513)]