18618255

素因数分解:

$3^4\times 5^1\times {\mathrm{45971}}^1$

素因数の和:45988

約数の個数: 20

約数和(自身を含む): 33375672

約数和(自身を除く): 14757417

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 45971, 137913, 229855, 413739, 689565, 1241217, 2068695, 3723651, 6206085, 18618255]

約数ペア:

[(1, 18618255), (3, 6206085), (5, 3723651), (9, 2068695), (15, 1241217), (27, 689565), (45, 413739), (81, 229855), (135, 137913), (405, 45971)]