28000215

素因数分解:

$3^3\times 5^1\times {\mathrm{207409}}^1$

素因数の和:207423

約数の個数: 16

約数和(自身を含む): 49778400

約数和(自身を除く): 21778185

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 207409, 622227, 1037045, 1866681, 3111135, 5600043, 9333405, 28000215]

約数ペア:

[(1, 28000215), (3, 9333405), (5, 5600043), (9, 3111135), (15, 1866681), (27, 1037045), (45, 622227), (135, 207409)]