220147521

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{37}}^2\times {\mathrm{443}}^1$

素因数の和:542

約数の個数: 36

約数和(自身を含む): 332344656

約数和(自身を除く): 112197135

約数列:

[1, 3, 11, 33, 37, 111, 121, 363, 407, 443, 1221, 1329, 1369, 4107, 4477, 4873, 13431, 14619, 15059, 16391, 45177, 49173, 53603, 160809, 165649, 180301, 496947, 540903, 606467, 1819401, 1983311, 5949933, 6671137, 20013411, 73382507, 220147521]

約数ペア:

[(1, 220147521), (3, 73382507), (11, 20013411), (33, 6671137), (37, 5949933), (111, 1983311), (121, 1819401), (363, 606467), (407, 540903), (443, 496947), (1221, 180301), (1329, 165649), (1369, 160809), (4107, 53603), (4477, 49173), (4873, 45177), (13431, 16391), (14619, 15059)]