15783255

素因数分解:

$3^4\times 5^1\times {\mathrm{38971}}^1$

素因数の和:38988

約数の個数: 20

約数和(自身を含む): 28293672

約数和(自身を除く): 12510417

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 38971, 116913, 194855, 350739, 584565, 1052217, 1753695, 3156651, 5261085, 15783255]

約数ペア:

[(1, 15783255), (3, 5261085), (5, 3156651), (9, 1753695), (15, 1052217), (27, 584565), (45, 350739), (81, 194855), (135, 116913), (405, 38971)]