21822777

素因数分解:

$3^4\times {\mathrm{419}}^1\times {\mathrm{643}}^1$

素因数の和:1074

約数の個数: 20

約数和(自身を含む): 32728080

約数和(自身を除く): 10905303

約数列:

[1, 3, 9, 27, 81, 419, 643, 1257, 1929, 3771, 5787, 11313, 17361, 33939, 52083, 269417, 808251, 2424753, 7274259, 21822777]

約数ペア:

[(1, 21822777), (3, 7274259), (9, 2424753), (27, 808251), (81, 269417), (419, 52083), (643, 33939), (1257, 17361), (1929, 11313), (3771, 5787)]