21533864

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{244703}}^1$

素因数の和:244720

約数の個数: 16

約数和(自身を含む): 44046720

約数和(自身を除く): 22512856

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 244703, 489406, 978812, 1957624, 2691733, 5383466, 10766932, 21533864]

約数ペア:

[(1, 21533864), (2, 10766932), (4, 5383466), (8, 2691733), (11, 1957624), (22, 978812), (44, 489406), (88, 244703)]