217445715

素因数分解:

$3^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3919}}^1$

素因数の和:4073

約数の個数: 40

約数和(自身を含む): 392736960

約数和(自身を除く): 175291245

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 137, 405, 411, 685, 1233, 2055, 3699, 3919, 6165, 11097, 11757, 18495, 19595, 35271, 55485, 58785, 105813, 176355, 317439, 529065, 536903, 1587195, 1610709, 2684515, 4832127, 8053545, 14496381, 24160635, 43489143, 72481905, 217445715]

約数ペア:

[(1, 217445715), (3, 72481905), (5, 43489143), (9, 24160635), (15, 14496381), (27, 8053545), (45, 4832127), (81, 2684515), (135, 1610709), (137, 1587195), (405, 536903), (411, 529065), (685, 317439), (1233, 176355), (2055, 105813), (3699, 58785), (3919, 55485), (6165, 35271), (11097, 19595), (11757, 18495)]