16618511

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:231

約数の個数: 32

約数和(自身を含む): 21762048

約数和(自身を除く): 5143537

約数列:

[1, 7, 13, 31, 43, 91, 137, 217, 301, 403, 559, 959, 1333, 1781, 2821, 3913, 4247, 5891, 9331, 12467, 17329, 29729, 41237, 55211, 76583, 121303, 182621, 386477, 536081, 1278347, 2374073, 16618511]

約数ペア:

[(1, 16618511), (7, 2374073), (13, 1278347), (31, 536081), (43, 386477), (91, 182621), (137, 121303), (217, 76583), (301, 55211), (403, 41237), (559, 29729), (959, 17329), (1333, 12467), (1781, 9331), (2821, 5891), (3913, 4247)]