18732791

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{1153}}^1$

素因数の和:1382

約数の個数: 16

約数和(自身を含む): 23486208

約数和(自身を除く): 4753417

約数列:

[1, 7, 11, 77, 211, 1153, 1477, 2321, 8071, 12683, 16247, 88781, 243283, 1702981, 2676113, 18732791]

約数ペア:

[(1, 18732791), (7, 2676113), (11, 1702981), (77, 243283), (211, 88781), (1153, 16247), (1477, 12683), (2321, 8071)]