28531431

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{337}}^1\times {\mathrm{409}}^1$

素因数の和:775

約数の個数: 24

約数和(自身を含む): 43236960

約数和(自身を除く): 14705529

約数列:

[1, 3, 9, 23, 69, 207, 337, 409, 1011, 1227, 3033, 3681, 7751, 9407, 23253, 28221, 69759, 84663, 137833, 413499, 1240497, 3170159, 9510477, 28531431]

約数ペア:

[(1, 28531431), (3, 9510477), (9, 3170159), (23, 1240497), (69, 413499), (207, 137833), (337, 84663), (409, 69759), (1011, 28221), (1227, 23253), (3033, 9407), (3681, 7751)]