21521896

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{244567}}^1$

素因数の和:244584

約数の個数: 16

約数和(自身を含む): 44022240

約数和(自身を除く): 22500344

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 244567, 489134, 978268, 1956536, 2690237, 5380474, 10760948, 21521896]

約数ペア:

[(1, 21521896), (2, 10760948), (4, 5380474), (8, 2690237), (11, 1956536), (22, 978268), (44, 489134), (88, 244567)]