20781976

素因数分解:

$2^3\times {\mathrm{719}}^1\times {\mathrm{3613}}^1$

素因数の和:4338

約数の個数: 16

約数和(自身を含む): 39031200

約数和(自身を除く): 18249224

約数列:

[1, 2, 4, 8, 719, 1438, 2876, 3613, 5752, 7226, 14452, 28904, 2597747, 5195494, 10390988, 20781976]

約数ペア:

[(1, 20781976), (2, 10390988), (4, 5195494), (8, 2597747), (719, 28904), (1438, 14452), (2876, 7226), (3613, 5752)]