20149689

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{10781}}^1$

素因数の和:10880

約数の個数: 16

約数和(自身を含む): 31052160

約数和(自身を除く): 10902471

約数列:

[1, 3, 7, 21, 89, 267, 623, 1869, 10781, 32343, 75467, 226401, 959509, 2878527, 6716563, 20149689]

約数ペア:

[(1, 20149689), (3, 6716563), (7, 2878527), (21, 959509), (89, 226401), (267, 75467), (623, 32343), (1869, 10781)]