18973575

素因数分解:

$3^3\times 5^2\times {\mathrm{28109}}^1$

素因数の和:28128

約数の個数: 24

約数和(自身を含む): 34856400

約数和(自身を除く): 15882825

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 28109, 84327, 140545, 252981, 421635, 702725, 758943, 1264905, 2108175, 3794715, 6324525, 18973575]

約数ペア:

[(1, 18973575), (3, 6324525), (5, 3794715), (9, 2108175), (15, 1264905), (25, 758943), (27, 702725), (45, 421635), (75, 252981), (135, 140545), (225, 84327), (675, 28109)]