15721048

素因数分解:

$2^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2143}}^1$

素因数の和:2287

約数の個数: 32

約数和(自身を含む): 33960960

約数和(自身を除く): 18239912

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 131, 262, 524, 917, 1048, 1834, 2143, 3668, 4286, 7336, 8572, 15001, 17144, 30002, 60004, 120008, 280733, 561466, 1122932, 1965131, 2245864, 3930262, 7860524, 15721048]

約数ペア:

[(1, 15721048), (2, 7860524), (4, 3930262), (7, 2245864), (8, 1965131), (14, 1122932), (28, 561466), (56, 280733), (131, 120008), (262, 60004), (524, 30002), (917, 17144), (1048, 15001), (1834, 8572), (2143, 7336), (3668, 4286)]