20940492

素因数分解:

$2^2\times 3^1\times {\mathrm{1321}}^2$

素因数の和:2649

約数の個数: 18

約数和(自身を含む): 48898164

約数和(自身を除く): 27957672

約数列:

[1, 2, 3, 4, 6, 12, 1321, 2642, 3963, 5284, 7926, 15852, 1745041, 3490082, 5235123, 6980164, 10470246, 20940492]

約数ペア:

[(1, 20940492), (2, 10470246), (3, 6980164), (4, 5235123), (6, 3490082), (12, 1745041), (1321, 15852), (2642, 7926), (3963, 5284)]