257555571

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{14081}}^1$

素因数の和:14171

約数の個数: 32

約数和(自身を含む): 428994048

約数和(自身を除く): 171438477

約数列:

[1, 3, 7, 13, 21, 39, 67, 91, 201, 273, 469, 871, 1407, 2613, 6097, 14081, 18291, 42243, 98567, 183053, 295701, 549159, 943427, 1281371, 2830281, 3844113, 6603989, 12264551, 19811967, 36793653, 85851857, 257555571]

約数ペア:

[(1, 257555571), (3, 85851857), (7, 36793653), (13, 19811967), (21, 12264551), (39, 6603989), (67, 3844113), (91, 2830281), (201, 1281371), (273, 943427), (469, 549159), (871, 295701), (1407, 183053), (2613, 98567), (6097, 42243), (14081, 18291)]