20556284

素因数分解:

$2^2\times 7^2\times {\mathrm{104879}}^1$

素因数の和:104897

約数の個数: 18

約数和(自身を含む): 41847120

約数和(自身を除く): 21290836

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 104879, 209758, 419516, 734153, 1468306, 2936612, 5139071, 10278142, 20556284]

約数ペア:

[(1, 20556284), (2, 10278142), (4, 5139071), (7, 2936612), (14, 1468306), (28, 734153), (49, 419516), (98, 209758), (196, 104879)]