168443821

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{20341}}^1$

素因数の和:20381

約数の個数: 18

約数和(自身を含む): 212187402

約数和(自身を除く): 43743581

約数列:

[1, 7, 13, 49, 91, 169, 637, 1183, 8281, 20341, 142387, 264433, 996709, 1851031, 3437629, 12957217, 24063403, 168443821]

約数ペア:

[(1, 168443821), (7, 24063403), (13, 12957217), (49, 3437629), (91, 1851031), (169, 996709), (637, 264433), (1183, 142387), (8281, 20341)]