127778721

素因数分解:

$3^1\times 7^2\times {\mathrm{239}}^1\times {\mathrm{3637}}^1$

素因数の和:3893

約数の個数: 24

約数和(自身を含む): 199071360

約数和(自身を除く): 71292639

約数列:

[1, 3, 7, 21, 49, 147, 239, 717, 1673, 3637, 5019, 10911, 11711, 25459, 35133, 76377, 178213, 534639, 869243, 2607729, 6084701, 18254103, 42592907, 127778721]

約数ペア:

[(1, 127778721), (3, 42592907), (7, 18254103), (21, 6084701), (49, 2607729), (147, 869243), (239, 534639), (717, 178213), (1673, 76377), (3637, 35133), (5019, 25459), (10911, 11711)]