20913081

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{16879}}^1$

素因数の和:16948

約数の個数: 16

約数和(自身を含む): 32409600

約数和(自身を除く): 11496519

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 16879, 50637, 118153, 354459, 995861, 2987583, 6971027, 20913081]

約数ペア:

[(1, 20913081), (3, 6971027), (7, 2987583), (21, 995861), (59, 354459), (177, 118153), (413, 50637), (1239, 16879)]