20189178

素因数分解:

$2^1\times 3^2\times {\mathrm{1121621}}^1$

素因数の和:1121629

約数の個数: 12

約数和(自身を含む): 43743258

約数和(自身を除く): 23554080

約数列:

[1, 2, 3, 6, 9, 18, 1121621, 2243242, 3364863, 6729726, 10094589, 20189178]

約数ペア:

[(1, 20189178), (2, 10094589), (3, 6729726), (6, 3364863), (9, 2243242), (18, 1121621)]