20900209

素因数分解:

${\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{9091}}^1$

素因数の和:9132

約数の個数: 12

約数和(自身を含む): 24184720

約数和(自身を除く): 3284511

約数列:

[1, 11, 19, 121, 209, 2299, 9091, 100001, 172729, 1100011, 1900019, 20900209]

約数ペア:

[(1, 20900209), (11, 1900019), (19, 1100011), (121, 172729), (209, 100001), (2299, 9091)]