25551889

素因数分解:

${\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:432

約数の個数: 16

約数和(自身を含む): 28543680

約数和(自身を除く): 2991791

約数列:

[1, 11, 101, 109, 211, 1111, 1199, 2321, 11009, 21311, 22999, 121099, 234421, 252989, 2322899, 25551889]

約数ペア:

[(1, 25551889), (11, 2322899), (101, 252989), (109, 234421), (211, 121099), (1111, 22999), (1199, 21311), (2321, 11009)]