21555272

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{141811}}^1$

素因数の和:141836

約数の個数: 16

約数和(自身を含む): 42543600

約数和(自身を除く): 20988328

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 141811, 283622, 567244, 1134488, 2694409, 5388818, 10777636, 21555272]

約数ペア:

[(1, 21555272), (2, 10777636), (4, 5388818), (8, 2694409), (19, 1134488), (38, 567244), (76, 283622), (152, 141811)]