20847009

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{487}}^1\times {\mathrm{751}}^1$

素因数の和:1260

約数の個数: 16

約数和(自身を含む): 29358080

約数和(自身を除く): 8511071

約数列:

[1, 3, 19, 57, 487, 751, 1461, 2253, 9253, 14269, 27759, 42807, 365737, 1097211, 6949003, 20847009]

約数ペア:

[(1, 20847009), (3, 6949003), (19, 1097211), (57, 365737), (487, 42807), (751, 27759), (1461, 14269), (2253, 9253)]