21000343378

素因数分解:

$2^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{509}}^1\times {\mathrm{10639}}^1$

素因数の和:11434

約数の個数: 32

約数和(自身を含む): 36204940800

約数和(自身を除く): 15204597422

約数列:

[1, 2, 7, 14, 277, 509, 554, 1018, 1939, 3563, 3878, 7126, 10639, 21278, 74473, 140993, 148946, 281986, 986951, 1973902, 2947003, 5415251, 5894006, 10830502, 20629021, 37906757, 41258042, 75813514, 1500024527, 3000049054, 10500171689, 21000343378]

約数ペア:

[(1, 21000343378), (2, 10500171689), (7, 3000049054), (14, 1500024527), (277, 75813514), (509, 41258042), (554, 37906757), (1018, 20629021), (1939, 10830502), (3563, 5894006), (3878, 5415251), (7126, 2947003), (10639, 1973902), (21278, 986951), (74473, 281986), (140993, 148946)]