20549104

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{18089}}^1$

素因数の和:18168

約数の個数: 20

約数和(自身を含む): 40376880

約数和(自身を除く): 19827776

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 18089, 36178, 72356, 144712, 289424, 1284319, 2568638, 5137276, 10274552, 20549104]

約数ペア:

[(1, 20549104), (2, 10274552), (4, 5137276), (8, 2568638), (16, 1284319), (71, 289424), (142, 144712), (284, 72356), (568, 36178), (1136, 18089)]