855137759

素因数分解:

$7^4\times {\mathrm{31}}^1\times {\mathrm{11489}}^1$

素因数の和:11548

約数の個数: 20

約数和(自身を含む): 1029871680

約数和(自身を除く): 174733921

約数列:

[1, 7, 31, 49, 217, 343, 1519, 2401, 10633, 11489, 74431, 80423, 356159, 562961, 2493113, 3940727, 17451791, 27585089, 122162537, 855137759]

約数ペア:

[(1, 855137759), (7, 122162537), (31, 27585089), (49, 17451791), (217, 3940727), (343, 2493113), (1519, 562961), (2401, 356159), (10633, 80423), (11489, 74431)]