21707426

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{11437}}^1$

素因数の和:11525

約数の個数: 16

約数和(自身を含む): 35549304

約数和(自身を除く): 13841878

約数列:

[1, 2, 13, 26, 73, 146, 949, 1898, 11437, 22874, 148681, 297362, 834901, 1669802, 10853713, 21707426]

約数ペア:

[(1, 21707426), (2, 10853713), (13, 1669802), (26, 834901), (73, 297362), (146, 148681), (949, 22874), (1898, 11437)]