21131528

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{240131}}^1$

素因数の和:240148

約数の個数: 16

約数和(自身を含む): 43223760

約数和(自身を除く): 22092232

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 240131, 480262, 960524, 1921048, 2641441, 5282882, 10565764, 21131528]

約数ペア:

[(1, 21131528), (2, 10565764), (4, 5282882), (8, 2641441), (11, 1921048), (22, 960524), (44, 480262), (88, 240131)]