19903642

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{4057}}^1$

素因数の和:4293

約数の個数: 16

約数和(自身を含む): 32723712

約数和(自身を除く): 12820070

約数列:

[1, 2, 11, 22, 223, 446, 2453, 4057, 4906, 8114, 44627, 89254, 904711, 1809422, 9951821, 19903642]

約数ペア:

[(1, 19903642), (2, 9951821), (11, 1809422), (22, 904711), (223, 89254), (446, 44627), (2453, 8114), (4057, 4906)]