21704345

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4703}}^1$

素因数の和:4792

約数の個数: 16

約数和(自身を含む): 28449792

約数和(自身を除く): 6745447

約数列:

[1, 5, 13, 65, 71, 355, 923, 4615, 4703, 23515, 61139, 305695, 333913, 1669565, 4340869, 21704345]

約数ペア:

[(1, 21704345), (5, 4340869), (13, 1669565), (65, 333913), (71, 305695), (355, 61139), (923, 23515), (4615, 4703)]