28268919

素因数分解:

$3^5\times 7^1\times {\mathrm{16619}}^1$

素因数の和:16641

約数の個数: 24

約数和(自身を含む): 48397440

約数和(自身を除く): 20128521

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 16619, 49857, 116333, 149571, 348999, 448713, 1046997, 1346139, 3140991, 4038417, 9422973, 28268919]

約数ペア:

[(1, 28268919), (3, 9422973), (7, 4038417), (9, 3140991), (21, 1346139), (27, 1046997), (63, 448713), (81, 348999), (189, 149571), (243, 116333), (567, 49857), (1701, 16619)]