245654321

素因数分解:

${\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{20101}}^1$

素因数の和:20224

約数の個数: 12

約数和(自身を含む): 272703732

約数和(自身を除く): 27049411

約数列:

[1, 11, 101, 121, 1111, 12221, 20101, 221111, 2030201, 2432221, 22332211, 245654321]

約数ペア:

[(1, 245654321), (11, 22332211), (101, 2432221), (121, 2030201), (1111, 221111), (12221, 20101)]