20480391

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{16139}}^1$

素因数の和:16195

約数の個数: 16

約数和(自身を含む): 30988800

約数和(自身を除く): 10508409

約数列:

[1, 3, 9, 27, 47, 141, 423, 1269, 16139, 48417, 145251, 435753, 758533, 2275599, 6826797, 20480391]

約数ペア:

[(1, 20480391), (3, 6826797), (9, 2275599), (27, 758533), (47, 435753), (141, 145251), (423, 48417), (1269, 16139)]