20896161

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{727}}^1$

素因数の和:821

約数の個数: 32

約数和(自身を含む): 33266688

約数和(自身を除く): 12370527

約数列:

[1, 3, 11, 13, 33, 39, 67, 143, 201, 429, 727, 737, 871, 2181, 2211, 2613, 7997, 9451, 9581, 23991, 28353, 28743, 48709, 103961, 146127, 311883, 535799, 633217, 1607397, 1899651, 6965387, 20896161]

約数ペア:

[(1, 20896161), (3, 6965387), (11, 1899651), (13, 1607397), (33, 633217), (39, 535799), (67, 311883), (143, 146127), (201, 103961), (429, 48709), (727, 28743), (737, 28353), (871, 23991), (2181, 9581), (2211, 9451), (2613, 7997)]