18676539

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 32507904

約数和(自身を除く): 13831365

約数列:

[1, 3, 7, 9, 21, 31, 63, 73, 93, 131, 217, 219, 279, 393, 511, 651, 657, 917, 1179, 1533, 1953, 2263, 2751, 4061, 4599, 6789, 8253, 9563, 12183, 15841, 20367, 28427, 28689, 36549, 47523, 66941, 85281, 86067, 142569, 200823, 255843, 296453, 602469, 889359, 2075171, 2668077, 6225513, 18676539]

約数ペア:

[(1, 18676539), (3, 6225513), (7, 2668077), (9, 2075171), (21, 889359), (31, 602469), (63, 296453), (73, 255843), (93, 200823), (131, 142569), (217, 86067), (219, 85281), (279, 66941), (393, 47523), (511, 36549), (651, 28689), (657, 28427), (917, 20367), (1179, 15841), (1533, 12183), (1953, 9563), (2263, 8253), (2751, 6789), (4061, 4599)]