28156986

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{10939}}^1$

素因数の和:10971

約数の個数: 48

約数和(自身を含む): 71678880

約数和(自身を除く): 43521894

約数列:

[1, 2, 3, 6, 9, 11, 13, 18, 22, 26, 33, 39, 66, 78, 99, 117, 143, 198, 234, 286, 429, 858, 1287, 2574, 10939, 21878, 32817, 65634, 98451, 120329, 142207, 196902, 240658, 284414, 360987, 426621, 721974, 853242, 1082961, 1279863, 1564277, 2165922, 2559726, 3128554, 4692831, 9385662, 14078493, 28156986]

約数ペア:

[(1, 28156986), (2, 14078493), (3, 9385662), (6, 4692831), (9, 3128554), (11, 2559726), (13, 2165922), (18, 1564277), (22, 1279863), (26, 1082961), (33, 853242), (39, 721974), (66, 426621), (78, 360987), (99, 284414), (117, 240658), (143, 196902), (198, 142207), (234, 120329), (286, 98451), (429, 65634), (858, 32817), (1287, 21878), (2574, 10939)]