21129086

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{18121}}^1$

素因数の和:18187

約数の個数: 16

約数和(自身を含む): 35229168

約数和(自身を除く): 14100082

約数列:

[1, 2, 11, 22, 53, 106, 583, 1166, 18121, 36242, 199331, 398662, 960413, 1920826, 10564543, 21129086]

約数ペア:

[(1, 21129086), (2, 10564543), (11, 1920826), (22, 960413), (53, 398662), (106, 199331), (583, 36242), (1166, 18121)]