12438279

素因数分解:

$3^4\times 7^1\times {\mathrm{21937}}^1$

素因数の和:21956

約数の個数: 20

約数和(自身を含む): 21235984

約数和(自身を除く): 8797705

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 21937, 65811, 153559, 197433, 460677, 592299, 1382031, 1776897, 4146093, 12438279]

約数ペア:

[(1, 12438279), (3, 4146093), (7, 1776897), (9, 1382031), (21, 592299), (27, 460677), (63, 197433), (81, 153559), (189, 65811), (567, 21937)]