19940776

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{35107}}^1$

素因数の和:35184

約数の個数: 16

約数和(自身を含む): 37916640

約数和(自身を除く): 17975864

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 35107, 70214, 140428, 280856, 2492597, 4985194, 9970388, 19940776]

約数ペア:

[(1, 19940776), (2, 9970388), (4, 4985194), (8, 2492597), (71, 280856), (142, 140428), (284, 70214), (568, 35107)]