28090215

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{16871}}^1$

素因数の和:16919

約数の個数: 24

約数和(自身を含む): 50008608

約数和(自身を除く): 21918393

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 16871, 50613, 84355, 151839, 253065, 624227, 759195, 1872681, 3121135, 5618043, 9363405, 28090215]

約数ペア:

[(1, 28090215), (3, 9363405), (5, 5618043), (9, 3121135), (15, 1872681), (37, 759195), (45, 624227), (111, 253065), (185, 151839), (333, 84355), (555, 50613), (1665, 16871)]