28680723

素因数分解:

$3^4\times {\mathrm{401}}^1\times {\mathrm{883}}^1$

素因数の和:1296

約数の個数: 20

約数和(自身を含む): 42999528

約数和(自身を除く): 14318805

約数列:

[1, 3, 9, 27, 81, 401, 883, 1203, 2649, 3609, 7947, 10827, 23841, 32481, 71523, 354083, 1062249, 3186747, 9560241, 28680723]

約数ペア:

[(1, 28680723), (3, 9560241), (9, 3186747), (27, 1062249), (81, 354083), (401, 71523), (883, 32481), (1203, 23841), (2649, 10827), (3609, 7947)]