16188255

素因数分解:

$3^4\times 5^1\times {\mathrm{39971}}^1$

素因数の和:39988

約数の個数: 20

約数和(自身を含む): 29019672

約数和(自身を除く): 12831417

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 39971, 119913, 199855, 359739, 599565, 1079217, 1798695, 3237651, 5396085, 16188255]

約数ペア:

[(1, 16188255), (3, 5396085), (5, 3237651), (9, 1798695), (15, 1079217), (27, 599565), (45, 359739), (81, 199855), (135, 119913), (405, 39971)]