21000391626

素因数分解:

$2^1\times 3^1\times {\mathrm{620689}}^1\times {\mathrm{5639}}^1$

素因数の和:626333

約数の個数: 16

約数和(自身を含む): 42008299200

約数和(自身を除く): 21007907574

約数列:

[1, 2, 3, 6, 5639, 11278, 16917, 33834, 620689, 1241378, 1862067, 3724134, 3500065271, 7000130542, 10500195813, 21000391626]

約数ペア:

[(1, 21000391626), (2, 10500195813), (3, 7000130542), (6, 3500065271), (5639, 3724134), (11278, 1862067), (16917, 1241378), (33834, 620689)]