18053781

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{293}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 27095040

約数和(自身を除く): 9041259

約数列:

[1, 3, 19, 23, 47, 57, 69, 141, 293, 437, 879, 893, 1081, 1311, 2679, 3243, 5567, 6739, 13771, 16701, 20217, 20539, 41313, 61617, 128041, 261649, 316733, 384123, 784947, 950199, 6017927, 18053781]

約数ペア:

[(1, 18053781), (3, 6017927), (19, 950199), (23, 784947), (47, 384123), (57, 316733), (69, 261649), (141, 128041), (293, 61617), (437, 41313), (879, 20539), (893, 20217), (1081, 16701), (1311, 13771), (2679, 6739), (3243, 5567)]