19990223

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{947}}^1$

素因数の和:1078

約数の個数: 16

約数和(自身を含む): 23207040

約数和(自身を除く): 3216817

約数列:

[1, 11, 19, 101, 209, 947, 1111, 1919, 10417, 17993, 21109, 95647, 197923, 1052117, 1817293, 19990223]

約数ペア:

[(1, 19990223), (11, 1817293), (19, 1052117), (101, 197923), (209, 95647), (947, 21109), (1111, 17993), (1919, 10417)]