28215513

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{55001}}^1$

素因数の和:55029

約数の個数: 16

約数和(自身を含む): 44001600

約数和(自身を除く): 15786087

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 55001, 165003, 495009, 1045019, 1485027, 3135057, 9405171, 28215513]

約数ペア:

[(1, 28215513), (3, 9405171), (9, 3135057), (19, 1485027), (27, 1045019), (57, 495009), (171, 165003), (513, 55001)]