20440971

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{10663}}^1$

素因数の和:10743

約数の個数: 16

約数和(自身を含む): 30712320

約数和(自身を除く): 10271349

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 10663, 31989, 95967, 287901, 757073, 2271219, 6813657, 20440971]

約数ペア:

[(1, 20440971), (3, 6813657), (9, 2271219), (27, 757073), (71, 287901), (213, 95967), (639, 31989), (1917, 10663)]