18268804959

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{739}}^1\times {\mathrm{1171}}^1$

素因数の和:2171

約数の個数: 32

約数和(自身を含む): 25310699520

約数和(自身を除く): 7041894561

約数列:

[1, 3, 31, 93, 227, 681, 739, 1171, 2217, 3513, 7037, 21111, 22909, 36301, 68727, 108903, 167753, 265817, 503259, 797451, 865369, 2596107, 5200343, 8240327, 15601029, 24720981, 26826439, 80479317, 196438763, 589316289, 6089601653, 18268804959]

約数ペア:

[(1, 18268804959), (3, 6089601653), (31, 589316289), (93, 196438763), (227, 80479317), (681, 26826439), (739, 24720981), (1171, 15601029), (2217, 8240327), (3513, 5200343), (7037, 2596107), (21111, 865369), (22909, 797451), (36301, 503259), (68727, 265817), (108903, 167753)]