20765563

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{4657}}^1$

素因数の和:4691

約数の個数: 16

約数和(自身を含む): 26084800

約数和(自身を除く): 5319237

約数列:

[1, 7, 13, 49, 91, 343, 637, 4459, 4657, 32599, 60541, 228193, 423787, 1597351, 2966509, 20765563]

約数ペア:

[(1, 20765563), (7, 2966509), (13, 1597351), (49, 423787), (91, 228193), (343, 60541), (637, 32599), (4459, 4657)]