18128747

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2729}}^1$

素因数の和:2822

約数の個数: 16

約数和(自身を含む): 22626240

約数和(自身を除く): 4497493

約数列:

[1, 7, 13, 73, 91, 511, 949, 2729, 6643, 19103, 35477, 199217, 248339, 1394519, 2589821, 18128747]

約数ペア:

[(1, 18128747), (7, 2589821), (13, 1394519), (73, 248339), (91, 199217), (511, 35477), (949, 19103), (2729, 6643)]