805202289

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{63317}}^1$

素因数の和:63486

約数の個数: 20

約数和(自身を含む): 1210513524

約数和(自身を除く): 405311235

約数列:

[1, 3, 9, 27, 81, 157, 471, 1413, 4239, 12717, 63317, 189951, 569853, 1709559, 5128677, 9940769, 29822307, 89466921, 268400763, 805202289]

約数ペア:

[(1, 805202289), (3, 268400763), (9, 89466921), (27, 29822307), (81, 9940769), (157, 5128677), (471, 1709559), (1413, 569853), (4239, 189951), (12717, 63317)]