19356687

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:292

約数の個数: 48

約数和(自身を含む): 34178560

約数和(自身を除く): 14821873

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 103, 133, 157, 171, 309, 399, 471, 721, 927, 1099, 1197, 1413, 1957, 2163, 2983, 3297, 5871, 6489, 8949, 9891, 13699, 16171, 17613, 20881, 26847, 41097, 48513, 62643, 113197, 123291, 145539, 187929, 307249, 339591, 921747, 1018773, 2150743, 2765241, 6452229, 19356687]

約数ペア:

[(1, 19356687), (3, 6452229), (7, 2765241), (9, 2150743), (19, 1018773), (21, 921747), (57, 339591), (63, 307249), (103, 187929), (133, 145539), (157, 123291), (171, 113197), (309, 62643), (399, 48513), (471, 41097), (721, 26847), (927, 20881), (1099, 17613), (1197, 16171), (1413, 13699), (1957, 9891), (2163, 8949), (2983, 6489), (3297, 5871)]