19905776

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{6653}}^1$

素因数の和:6689

約数の個数: 40

約数和(自身を含む): 44555184

約数和(自身を除く): 24649408

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 136, 176, 187, 272, 374, 748, 1496, 2992, 6653, 13306, 26612, 53224, 73183, 106448, 113101, 146366, 226202, 292732, 452404, 585464, 904808, 1170928, 1244111, 1809616, 2488222, 4976444, 9952888, 19905776]

約数ペア:

[(1, 19905776), (2, 9952888), (4, 4976444), (8, 2488222), (11, 1809616), (16, 1244111), (17, 1170928), (22, 904808), (34, 585464), (44, 452404), (68, 292732), (88, 226202), (136, 146366), (176, 113101), (187, 106448), (272, 73183), (374, 53224), (748, 26612), (1496, 13306), (2992, 6653)]