28188945

素因数分解:

$3^3\times 5^1\times {\mathrm{208807}}^1$

素因数の和:208821

約数の個数: 16

約数和(自身を含む): 50113920

約数和(自身を除く): 21924975

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 208807, 626421, 1044035, 1879263, 3132105, 5637789, 9396315, 28188945]

約数ペア:

[(1, 28188945), (3, 9396315), (5, 5637789), (9, 3132105), (15, 1879263), (27, 1044035), (45, 626421), (135, 208807)]