21781272

素因数分解:

$2^3\times 3^1\times {\mathrm{661}}^1\times {\mathrm{1373}}^1$

素因数の和:2043

約数の個数: 32

約数和(自身を含む): 54575280

約数和(自身を除く): 32794008

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 661, 1322, 1373, 1983, 2644, 2746, 3966, 4119, 5288, 5492, 7932, 8238, 10984, 15864, 16476, 32952, 907553, 1815106, 2722659, 3630212, 5445318, 7260424, 10890636, 21781272]

約数ペア:

[(1, 21781272), (2, 10890636), (3, 7260424), (4, 5445318), (6, 3630212), (8, 2722659), (12, 1815106), (24, 907553), (661, 32952), (1322, 16476), (1373, 15864), (1983, 10984), (2644, 8238), (2746, 7932), (3966, 5492), (4119, 5288)]