18625221

素因数分解:

$3^6\times {\mathrm{29}}^1\times {\mathrm{881}}^1$

素因数の和:928

約数の個数: 28

約数和(自身を含む): 28920780

約数和(自身を除く): 10295559

約数列:

[1, 3, 9, 27, 29, 81, 87, 243, 261, 729, 783, 881, 2349, 2643, 7047, 7929, 21141, 23787, 25549, 71361, 76647, 214083, 229941, 642249, 689823, 2069469, 6208407, 18625221]

約数ペア:

[(1, 18625221), (3, 6208407), (9, 2069469), (27, 689823), (29, 642249), (81, 229941), (87, 214083), (243, 76647), (261, 71361), (729, 25549), (783, 23787), (881, 21141), (2349, 7929), (2643, 7047)]