67638571

素因数分解:

$7^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:249

約数の個数: 40

約数和(自身を含む): 93172464

約数和(自身を除く): 25533893

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 197, 343, 539, 637, 1001, 1379, 2167, 2401, 2561, 3773, 4459, 7007, 9653, 15169, 17927, 26411, 28171, 31213, 49049, 67571, 106183, 125489, 197197, 343343, 472997, 743281, 878423, 1380379, 5202967, 6148961, 9662653, 67638571]

約数ペア:

[(1, 67638571), (7, 9662653), (11, 6148961), (13, 5202967), (49, 1380379), (77, 878423), (91, 743281), (143, 472997), (197, 343343), (343, 197197), (539, 125489), (637, 106183), (1001, 67571), (1379, 49049), (2167, 31213), (2401, 28171), (2561, 26411), (3773, 17927), (4459, 15169), (7007, 9653)]