20645443

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{739}}^1$

素因数の和:1066

約数の個数: 16

約数和(自身を含む): 25527040

約数和(自身を除く): 4881597

約数列:

[1, 7, 13, 91, 307, 739, 2149, 3991, 5173, 9607, 27937, 67249, 226873, 1588111, 2949349, 20645443]

約数ペア:

[(1, 20645443), (7, 2949349), (13, 1588111), (91, 226873), (307, 67249), (739, 27937), (2149, 9607), (3991, 5173)]