20817328

素因数分解:

$2^4\times 7^1\times {\mathrm{185869}}^1$

素因数の和:185884

約数の個数: 20

約数和(自身を含む): 46095760

約数和(自身を除く): 25278432

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 185869, 371738, 743476, 1301083, 1486952, 2602166, 2973904, 5204332, 10408664, 20817328]

約数ペア:

[(1, 20817328), (2, 10408664), (4, 5204332), (7, 2973904), (8, 2602166), (14, 1486952), (16, 1301083), (28, 743476), (56, 371738), (112, 185869)]