19471221

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{28097}}^1$

素因数の和:28121

約数の個数: 24

約数和(自身を含む): 35066304

約数和(自身を除く): 15595083

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 28097, 84291, 196679, 252873, 309067, 590037, 927201, 1770111, 2163469, 2781603, 6490407, 19471221]

約数ペア:

[(1, 19471221), (3, 6490407), (7, 2781603), (9, 2163469), (11, 1770111), (21, 927201), (33, 590037), (63, 309067), (77, 252873), (99, 196679), (231, 84291), (693, 28097)]