28217505

素因数分解:

$3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{17581}}^1$

素因数の和:17696

約数の個数: 16

約数和(自身を含む): 45572544

約数和(自身を除く): 17355039

約数列:

[1, 3, 5, 15, 107, 321, 535, 1605, 17581, 52743, 87905, 263715, 1881167, 5643501, 9405835, 28217505]

約数ペア:

[(1, 28217505), (3, 9405835), (5, 5643501), (15, 1881167), (107, 263715), (321, 87905), (535, 52743), (1605, 17581)]