19223408

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{27941}}^1$

素因数の和:27992

約数の個数: 20

約数和(自身を含む): 38112888

約数和(自身を除く): 18889480

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 27941, 55882, 111764, 223528, 447056, 1201463, 2402926, 4805852, 9611704, 19223408]

約数ペア:

[(1, 19223408), (2, 9611704), (4, 4805852), (8, 2402926), (16, 1201463), (43, 447056), (86, 223528), (172, 111764), (344, 55882), (688, 27941)]