20219668

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31397}}^1$

素因数の和:31431

約数の個数: 24

約数和(自身を含む): 42198912

約数和(自身を除く): 21979244

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 31397, 62794, 125588, 219779, 439558, 722131, 879116, 1444262, 2888524, 5054917, 10109834, 20219668]

約数ペア:

[(1, 20219668), (2, 10109834), (4, 5054917), (7, 2888524), (14, 1444262), (23, 879116), (28, 722131), (46, 439558), (92, 219779), (161, 125588), (322, 62794), (644, 31397)]