18907724

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 37933056

約数和(自身を除く): 19025332

約数列:

[1, 2, 4, 11, 22, 41, 44, 47, 82, 94, 164, 188, 223, 446, 451, 517, 892, 902, 1034, 1804, 1927, 2068, 2453, 3854, 4906, 7708, 9143, 9812, 10481, 18286, 20962, 21197, 36572, 41924, 42394, 84788, 100573, 115291, 201146, 230582, 402292, 429721, 461164, 859442, 1718884, 4726931, 9453862, 18907724]

約数ペア:

[(1, 18907724), (2, 9453862), (4, 4726931), (11, 1718884), (22, 859442), (41, 461164), (44, 429721), (47, 402292), (82, 230582), (94, 201146), (164, 115291), (188, 100573), (223, 84788), (446, 42394), (451, 41924), (517, 36572), (892, 21197), (902, 20962), (1034, 18286), (1804, 10481), (1927, 9812), (2068, 9143), (2453, 7708), (3854, 4906)]