20352689

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{461}}^1$

素因数の和:545

約数の個数: 24

約数和(自身を含む): 25596648

約数和(自身を除く): 5243959

約数列:

[1, 7, 17, 49, 53, 119, 371, 461, 833, 901, 2597, 3227, 6307, 7837, 22589, 24433, 44149, 54859, 171031, 384013, 415361, 1197217, 2907527, 20352689]

約数ペア:

[(1, 20352689), (7, 2907527), (17, 1197217), (49, 415361), (53, 384013), (119, 171031), (371, 54859), (461, 44149), (833, 24433), (901, 22589), (2597, 7837), (3227, 6307)]