189801981

素因数分解:

$3^3\times {\mathrm{1009}}^1\times {\mathrm{6967}}^1$

素因数の和:7985

約数の個数: 16

約数和(自身を含む): 281507200

約数和(自身を除く): 91705219

約数列:

[1, 3, 9, 27, 1009, 3027, 6967, 9081, 20901, 27243, 62703, 188109, 7029703, 21089109, 63267327, 189801981]

約数ペア:

[(1, 189801981), (3, 63267327), (9, 21089109), (27, 7029703), (1009, 188109), (3027, 62703), (6967, 27243), (9081, 20901)]