20405368

素因数分解:

$2^3\times {\mathrm{523}}^1\times {\mathrm{4877}}^1$

素因数の和:5406

約数の個数: 16

約数和(自身を含む): 38341080

約数和(自身を除く): 17935712

約数列:

[1, 2, 4, 8, 523, 1046, 2092, 4184, 4877, 9754, 19508, 39016, 2550671, 5101342, 10202684, 20405368]

約数ペア:

[(1, 20405368), (2, 10202684), (4, 5101342), (8, 2550671), (523, 39016), (1046, 19508), (2092, 9754), (4184, 4877)]