20078081289

素因数分解:

$3^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1058803}}^1$

素因数の和:1058866

約数の個数: 36

約数和(自身を含む): 34521245616

約数和(自身を除く): 14443164327

約数列:

[1, 3, 7, 9, 21, 43, 49, 63, 129, 147, 301, 387, 441, 903, 2107, 2709, 6321, 18963, 1058803, 3176409, 7411621, 9529227, 22234863, 45528529, 51881347, 66704589, 136585587, 155644041, 318699703, 409756761, 466932123, 956099109, 2230897921, 2868297327, 6692693763, 20078081289]

約数ペア:

[(1, 20078081289), (3, 6692693763), (7, 2868297327), (9, 2230897921), (21, 956099109), (43, 466932123), (49, 409756761), (63, 318699703), (129, 155644041), (147, 136585587), (301, 66704589), (387, 51881347), (441, 45528529), (903, 22234863), (2107, 9529227), (2709, 7411621), (6321, 3176409), (18963, 1058803)]