221890031

素因数分解:

${\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{199721}}^1$

素因数の和:199833

約数の個数: 8

約数和(自身を含む): 244459728

約数和(自身を除く): 22569697

約数列:

[1, 11, 101, 1111, 199721, 2196931, 20171821, 221890031]

約数ペア:

[(1, 221890031), (11, 20171821), (101, 2196931), (1111, 199721)]