20505381

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{1171}}^1$

素因数の和:1636

約数の個数: 16

約数和(自身を含む): 29534400

約数和(自身を除く): 9029019

約数列:

[1, 3, 13, 39, 449, 1171, 1347, 3513, 5837, 15223, 17511, 45669, 525779, 1577337, 6835127, 20505381]

約数ペア:

[(1, 20505381), (3, 6835127), (13, 1577337), (39, 525779), (449, 45669), (1171, 17511), (1347, 15223), (3513, 5837)]