207720863

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{607}}^1$

素因数の和:747

約数の個数: 32

約数和(自身を含む): 261488640

約数和(自身を除く): 53767777

約数列:

[1, 7, 19, 31, 83, 133, 217, 581, 589, 607, 1577, 2573, 4123, 4249, 11039, 11533, 18011, 18817, 48887, 50381, 80731, 131719, 342209, 352667, 357523, 957239, 1561811, 2502661, 6700673, 10932677, 29674409, 207720863]

約数ペア:

[(1, 207720863), (7, 29674409), (19, 10932677), (31, 6700673), (83, 2502661), (133, 1561811), (217, 957239), (581, 357523), (589, 352667), (607, 342209), (1577, 131719), (2573, 80731), (4123, 50381), (4249, 48887), (11039, 18817), (11533, 18011)]