21521368

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{244561}}^1$

素因数の和:244578

約数の個数: 16

約数和(自身を含む): 44021160

約数和(自身を除く): 22499792

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 244561, 489122, 978244, 1956488, 2690171, 5380342, 10760684, 21521368]

約数ペア:

[(1, 21521368), (2, 10760684), (4, 5380342), (8, 2690171), (11, 1956488), (22, 978244), (44, 489122), (88, 244561)]