21513142

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{941}}^1$

素因数の和:1044

約数の個数: 32

約数和(自身を含む): 39066624

約数和(自身を除く): 17553482

約数列:

[1, 2, 7, 14, 23, 46, 71, 142, 161, 322, 497, 941, 994, 1633, 1882, 3266, 6587, 11431, 13174, 21643, 22862, 43286, 66811, 133622, 151501, 303002, 467677, 935354, 1536653, 3073306, 10756571, 21513142]

約数ペア:

[(1, 21513142), (2, 10756571), (7, 3073306), (14, 1536653), (23, 935354), (46, 467677), (71, 303002), (142, 151501), (161, 133622), (322, 66811), (497, 43286), (941, 22862), (994, 21643), (1633, 13174), (1882, 11431), (3266, 6587)]