16647891

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 25025280

約数和(自身を除く): 8377389

約数列:

[1, 3, 13, 37, 39, 83, 111, 139, 249, 417, 481, 1079, 1443, 1807, 3071, 3237, 5143, 5421, 9213, 11537, 15429, 34611, 39923, 66859, 119769, 149981, 200577, 426869, 449943, 1280607, 5549297, 16647891]

約数ペア:

[(1, 16647891), (3, 5549297), (13, 1280607), (37, 449943), (39, 426869), (83, 200577), (111, 149981), (139, 119769), (249, 66859), (417, 39923), (481, 34611), (1079, 15429), (1443, 11537), (1807, 9213), (3071, 5421), (3237, 5143)]