20807504

素因数分解:

$2^4\times {\mathrm{421}}^1\times {\mathrm{3089}}^1$

素因数の和:3518

約数の個数: 20

約数和(自身を含む): 40423380

約数和(自身を除く): 19615876

約数列:

[1, 2, 4, 8, 16, 421, 842, 1684, 3089, 3368, 6178, 6736, 12356, 24712, 49424, 1300469, 2600938, 5201876, 10403752, 20807504]

約数ペア:

[(1, 20807504), (2, 10403752), (4, 5201876), (8, 2600938), (16, 1300469), (421, 49424), (842, 24712), (1684, 12356), (3089, 6736), (3368, 6178)]