19902278

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{8783}}^1$

素因数の和:8899

約数の個数: 16

約数和(自身を含む): 32887296

約数和(自身を除く): 12985018

約数列:

[1, 2, 11, 22, 103, 206, 1133, 2266, 8783, 17566, 96613, 193226, 904649, 1809298, 9951139, 19902278]

約数ペア:

[(1, 19902278), (2, 9951139), (11, 1809298), (22, 904649), (103, 193226), (206, 96613), (1133, 17566), (2266, 8783)]