20683988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{1279}}^1$

素因数の和:1607

約数の個数: 24

約数和(自身を含む): 39137280

約数和(自身を除く): 18453292

約数列:

[1, 2, 4, 13, 26, 52, 311, 622, 1244, 1279, 2558, 4043, 5116, 8086, 16172, 16627, 33254, 66508, 397769, 795538, 1591076, 5170997, 10341994, 20683988]

約数ペア:

[(1, 20683988), (2, 10341994), (4, 5170997), (13, 1591076), (26, 795538), (52, 397769), (311, 66508), (622, 33254), (1244, 16627), (1279, 16172), (2558, 8086), (4043, 5116)]