19691216

素因数分解:

$2^4\times {\mathrm{457}}^1\times {\mathrm{2693}}^1$

素因数の和:3158

約数の個数: 20

約数和(自身を含む): 38249412

約数和(自身を除く): 18558196

約数列:

[1, 2, 4, 8, 16, 457, 914, 1828, 2693, 3656, 5386, 7312, 10772, 21544, 43088, 1230701, 2461402, 4922804, 9845608, 19691216]

約数ペア:

[(1, 19691216), (2, 9845608), (4, 4922804), (8, 2461402), (16, 1230701), (457, 43088), (914, 21544), (1828, 10772), (2693, 7312), (3656, 5386)]