19777712

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{10939}}^1$

素因数の和:11060

約数の個数: 20

約数和(自身を含む): 38661960

約数和(自身を除く): 18884248

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 10939, 21878, 43756, 87512, 175024, 1236107, 2472214, 4944428, 9888856, 19777712]

約数ペア:

[(1, 19777712), (2, 9888856), (4, 4944428), (8, 2472214), (16, 1236107), (113, 175024), (226, 87512), (452, 43756), (904, 21878), (1808, 10939)]