27871605

素因数分解:

$3^2\times 5^1\times {\mathrm{787}}^2$

素因数の和:1585

約数の個数: 18

約数和(自身を含む): 48372246

約数和(自身を除く): 20500641

約数列:

[1, 3, 5, 9, 15, 45, 787, 2361, 3935, 7083, 11805, 35415, 619369, 1858107, 3096845, 5574321, 9290535, 27871605]

約数ペア:

[(1, 27871605), (3, 9290535), (5, 5574321), (9, 3096845), (15, 1858107), (45, 619369), (787, 35415), (2361, 11805), (3935, 7083)]