21539452

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{191}}^1\times {\mathrm{233}}^1$

素因数の和:450

約数の個数: 36

約数和(自身を含む): 41827968

約数和(自身を除く): 20288516

約数列:

[1, 2, 4, 11, 22, 44, 121, 191, 233, 242, 382, 466, 484, 764, 932, 2101, 2563, 4202, 5126, 8404, 10252, 23111, 28193, 44503, 46222, 56386, 89006, 92444, 112772, 178012, 489533, 979066, 1958132, 5384863, 10769726, 21539452]

約数ペア:

[(1, 21539452), (2, 10769726), (4, 5384863), (11, 1958132), (22, 979066), (44, 489533), (121, 178012), (191, 112772), (233, 92444), (242, 89006), (382, 56386), (466, 46222), (484, 44503), (764, 28193), (932, 23111), (2101, 10252), (2563, 8404), (4202, 5126)]