21155888907

素因数分解:

$3^3\times {\mathrm{293}}^1\times {\mathrm{643}}^1\times {\mathrm{4159}}^1$

素因数の和:5104

約数の個数: 32

約数和(自身を含む): 31505510400

約数和(自身を除く): 10349621493

約数列:

[1, 3, 9, 27, 293, 643, 879, 1929, 2637, 4159, 5787, 7911, 12477, 17361, 37431, 112293, 188399, 565197, 1218587, 1695591, 2674237, 3655761, 5086773, 8022711, 10967283, 24068133, 32901849, 72204399, 783551441, 2350654323, 7051962969, 21155888907]

約数ペア:

[(1, 21155888907), (3, 7051962969), (9, 2350654323), (27, 783551441), (293, 72204399), (643, 32901849), (879, 24068133), (1929, 10967283), (2637, 8022711), (4159, 5086773), (5787, 3655761), (7911, 2674237), (12477, 1695591), (17361, 1218587), (37431, 565197), (112293, 188399)]