20402855

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{8627}}^1$

素因数の和:8686

約数の個数: 16

約数和(自身を含む): 27333504

約数和(自身を除く): 6930649

約数列:

[1, 5, 11, 43, 55, 215, 473, 2365, 8627, 43135, 94897, 370961, 474485, 1854805, 4080571, 20402855]

約数ペア:

[(1, 20402855), (5, 4080571), (11, 1854805), (43, 474485), (55, 370961), (215, 94897), (473, 43135), (2365, 8627)]