21143485

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{20233}}^1$

素因数の和:20268

約数の個数: 16

約数和(自身を含む): 29136960

約数和(自身を除く): 7993475

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 20233, 101165, 222563, 384427, 1112815, 1922135, 4228697, 21143485]

約数ペア:

[(1, 21143485), (5, 4228697), (11, 1922135), (19, 1112815), (55, 384427), (95, 222563), (209, 101165), (1045, 20233)]