20866474

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{6389}}^1$

素因数の和:6485

約数の個数: 16

約数和(自身を含む): 33125760

約数和(自身を除く): 12259286

約数列:

[1, 2, 23, 46, 71, 142, 1633, 3266, 6389, 12778, 146947, 293894, 453619, 907238, 10433237, 20866474]

約数ペア:

[(1, 20866474), (2, 10433237), (23, 907238), (46, 453619), (71, 293894), (142, 146947), (1633, 12778), (3266, 6389)]