205586319

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:495

約数の個数: 32

約数和(自身を含む): 290497536

約数和(自身を除く): 84911217

約数列:

[1, 3, 37, 47, 111, 141, 157, 251, 471, 753, 1739, 5217, 5809, 7379, 9287, 11797, 17427, 22137, 27861, 35391, 39407, 118221, 273023, 436489, 819069, 1309467, 1458059, 1852129, 4374177, 5556387, 68528773, 205586319]

約数ペア:

[(1, 205586319), (3, 68528773), (37, 5556387), (47, 4374177), (111, 1852129), (141, 1458059), (157, 1309467), (251, 819069), (471, 436489), (753, 273023), (1739, 118221), (5217, 39407), (5809, 35391), (7379, 27861), (9287, 22137), (11797, 17427)]