21608554

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{12433}}^1$

素因数の和:12525

約数の個数: 16

約数和(自身を含む): 35809920

約数和(自身を除く): 14201366

約数列:

[1, 2, 11, 22, 79, 158, 869, 1738, 12433, 24866, 136763, 273526, 982207, 1964414, 10804277, 21608554]

約数ペア:

[(1, 21608554), (2, 10804277), (11, 1964414), (22, 982207), (79, 273526), (158, 136763), (869, 24866), (1738, 12433)]