20651368

素因数分解:

$2^3\times {\mathrm{631}}^1\times {\mathrm{4091}}^1$

素因数の和:4728

約数の個数: 16

約数和(自身を含む): 38792160

約数和(自身を除く): 18140792

約数列:

[1, 2, 4, 8, 631, 1262, 2524, 4091, 5048, 8182, 16364, 32728, 2581421, 5162842, 10325684, 20651368]

約数ペア:

[(1, 20651368), (2, 10325684), (4, 5162842), (8, 2581421), (631, 32728), (1262, 16364), (2524, 8182), (4091, 5048)]