1640578239

素因数分解:

$3^3\times {\mathrm{857}}^1\times {\mathrm{70901}}^1$

素因数の和:71767

約数の個数: 16

約数和(自身を含む): 2433356640

約数和(自身を除く): 792778401

約数列:

[1, 3, 9, 27, 857, 2571, 7713, 23139, 70901, 212703, 638109, 1914327, 60762157, 182286471, 546859413, 1640578239]

約数ペア:

[(1, 1640578239), (3, 546859413), (9, 182286471), (27, 60762157), (857, 1914327), (2571, 638109), (7713, 212703), (23139, 70901)]