21906553

素因数分解:

${\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1$

素因数の和:408

約数の個数: 16

約数和(自身を含む): 23639040

約数和(自身を除く): 1732487

約数列:

[1, 31, 37, 71, 269, 1147, 2201, 2627, 8339, 9953, 19099, 81437, 308543, 592069, 706663, 21906553]

約数ペア:

[(1, 21906553), (31, 706663), (37, 592069), (71, 308543), (269, 81437), (1147, 19099), (2201, 9953), (2627, 8339)]