20138728

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{47497}}^1$

素因数の和:47556

約数の個数: 16

約数和(自身を含む): 38473380

約数和(自身を除く): 18334652

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 47497, 94994, 189988, 379976, 2517341, 5034682, 10069364, 20138728]

約数ペア:

[(1, 20138728), (2, 10069364), (4, 5034682), (8, 2517341), (53, 379976), (106, 189988), (212, 94994), (424, 47497)]