19902267

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3191}}^1$

素因数の和:3221

約数の個数: 40

約数和(自身を含む): 37078272

約数和(自身を除く): 17176005

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 189, 231, 297, 567, 693, 891, 2079, 3191, 6237, 9573, 22337, 28719, 35101, 67011, 86157, 105303, 201033, 245707, 258471, 315909, 603099, 737121, 947727, 1809297, 2211363, 2843181, 6634089, 19902267]

約数ペア:

[(1, 19902267), (3, 6634089), (7, 2843181), (9, 2211363), (11, 1809297), (21, 947727), (27, 737121), (33, 603099), (63, 315909), (77, 258471), (81, 245707), (99, 201033), (189, 105303), (231, 86157), (297, 67011), (567, 35101), (693, 28719), (891, 22337), (2079, 9573), (3191, 6237)]