20709507

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{10837}}^1$

素因数の和:10867

約数の個数: 24

約数和(自身を含む): 34594896

約数和(自身を除く): 13885389

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 10837, 32511, 75859, 140881, 227577, 422643, 531013, 986167, 1593039, 2958501, 6903169, 20709507]

約数ペア:

[(1, 20709507), (3, 6903169), (7, 2958501), (13, 1593039), (21, 986167), (39, 531013), (49, 422643), (91, 227577), (147, 140881), (273, 75859), (637, 32511), (1911, 10837)]