17991337

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{937}}^1$

素因数の和:1168

約数の個数: 16

約数和(自身を含む): 22271872

約数和(自身を除く): 4280535

約数列:

[1, 7, 13, 91, 211, 937, 1477, 2743, 6559, 12181, 19201, 85267, 197707, 1383949, 2570191, 17991337]

約数ペア:

[(1, 17991337), (7, 2570191), (13, 1383949), (91, 197707), (211, 85267), (937, 19201), (1477, 12181), (2743, 6559)]