38918789

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{571}}^1$

素因数の和:705

約数の個数: 24

約数和(自身を含む): 49297248

約数和(自身を除く): 10378459

約数列:

[1, 7, 13, 49, 91, 107, 571, 637, 749, 1391, 3997, 5243, 7423, 9737, 27979, 51961, 61097, 68159, 363727, 427679, 794261, 2993753, 5559827, 38918789]

約数ペア:

[(1, 38918789), (7, 5559827), (13, 2993753), (49, 794261), (91, 427679), (107, 363727), (571, 68159), (637, 61097), (749, 51961), (1391, 27979), (3997, 9737), (5243, 7423)]