21304528

素因数分解:

$2^4\times 7^1\times {\mathrm{223}}^1\times {\mathrm{853}}^1$

素因数の和:1091

約数の個数: 40

約数和(自身を含む): 47441408

約数和(自身を除く): 26136880

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 223, 446, 853, 892, 1561, 1706, 1784, 3122, 3412, 3568, 5971, 6244, 6824, 11942, 12488, 13648, 23884, 24976, 47768, 95536, 190219, 380438, 760876, 1331533, 1521752, 2663066, 3043504, 5326132, 10652264, 21304528]

約数ペア:

[(1, 21304528), (2, 10652264), (4, 5326132), (7, 3043504), (8, 2663066), (14, 1521752), (16, 1331533), (28, 760876), (56, 380438), (112, 190219), (223, 95536), (446, 47768), (853, 24976), (892, 23884), (1561, 13648), (1706, 12488), (1784, 11942), (3122, 6824), (3412, 6244), (3568, 5971)]