21153328

素因数分解:

$2^4\times 7^1\times {\mathrm{188869}}^1$

素因数の和:188884

約数の個数: 20

約数和(自身を含む): 46839760

約数和(自身を除く): 25686432

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 188869, 377738, 755476, 1322083, 1510952, 2644166, 3021904, 5288332, 10576664, 21153328]

約数ペア:

[(1, 21153328), (2, 10576664), (4, 5288332), (7, 3021904), (8, 2644166), (14, 1510952), (16, 1322083), (28, 755476), (56, 377738), (112, 188869)]