20198191851

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{2917}}^1\times {\mathrm{40493}}^1$

素因数の和:43435

約数の個数: 24

約数和(自身を含む): 30721987920

約数和(自身を除く): 10523796069

約数列:

[1, 3, 9, 19, 57, 171, 2917, 8751, 26253, 40493, 55423, 121479, 166269, 364437, 498807, 769367, 2308101, 6924303, 118118081, 354354243, 1063062729, 2244243539, 6732730617, 20198191851]

約数ペア:

[(1, 20198191851), (3, 6732730617), (9, 2244243539), (19, 1063062729), (57, 354354243), (171, 118118081), (2917, 6924303), (8751, 2308101), (26253, 769367), (40493, 498807), (55423, 364437), (121479, 166269)]