19772571

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:160

約数の個数: 64

約数和(自身を含む): 35094528

約数和(自身を除く): 15321957

約数列:

[1, 3, 7, 13, 21, 23, 39, 47, 67, 69, 91, 141, 161, 201, 273, 299, 329, 469, 483, 611, 871, 897, 987, 1081, 1407, 1541, 1833, 2093, 2613, 3149, 3243, 4277, 4623, 6097, 6279, 7567, 9447, 10787, 12831, 14053, 18291, 20033, 22043, 22701, 32361, 40937, 42159, 60099, 66129, 72427, 98371, 122811, 140231, 217281, 286559, 295113, 420693, 506989, 859677, 941551, 1520967, 2824653, 6590857, 19772571]

約数ペア:

[(1, 19772571), (3, 6590857), (7, 2824653), (13, 1520967), (21, 941551), (23, 859677), (39, 506989), (47, 420693), (67, 295113), (69, 286559), (91, 217281), (141, 140231), (161, 122811), (201, 98371), (273, 72427), (299, 66129), (329, 60099), (469, 42159), (483, 40937), (611, 32361), (871, 22701), (897, 22043), (987, 20033), (1081, 18291), (1407, 14053), (1541, 12831), (1833, 10787), (2093, 9447), (2613, 7567), (3149, 6279), (3243, 6097), (4277, 4623)]