18889353

素因数分解:

$3^2\times 7^3\times {\mathrm{29}}^1\times {\mathrm{211}}^1$

素因数の和:267

約数の個数: 48

約数和(自身を含む): 33072000

約数和(自身を除く): 14182647

約数列:

[1, 3, 7, 9, 21, 29, 49, 63, 87, 147, 203, 211, 261, 343, 441, 609, 633, 1029, 1421, 1477, 1827, 1899, 3087, 4263, 4431, 6119, 9947, 10339, 12789, 13293, 18357, 29841, 31017, 42833, 55071, 72373, 89523, 93051, 128499, 217119, 299831, 385497, 651357, 899493, 2098817, 2698479, 6296451, 18889353]

約数ペア:

[(1, 18889353), (3, 6296451), (7, 2698479), (9, 2098817), (21, 899493), (29, 651357), (49, 385497), (63, 299831), (87, 217119), (147, 128499), (203, 93051), (211, 89523), (261, 72373), (343, 55071), (441, 42833), (609, 31017), (633, 29841), (1029, 18357), (1421, 13293), (1477, 12789), (1827, 10339), (1899, 9947), (3087, 6119), (4263, 4431)]