4991984

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{16421}}^1$

素因数の和:16448

約数の個数: 20

約数和(自身を含む): 10181640

約数和(自身を除く): 5189656

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 16421, 32842, 65684, 131368, 262736, 311999, 623998, 1247996, 2495992, 4991984]

約数ペア:

[(1, 4991984), (2, 2495992), (4, 1247996), (8, 623998), (16, 311999), (19, 262736), (38, 131368), (76, 65684), (152, 32842), (304, 16421)]