28504305

素因数分解:

$3^4\times 5^1\times {\mathrm{70381}}^1$

素因数の和:70398

約数の個数: 20

約数和(自身を含む): 51097332

約数和(自身を除く): 22593027

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 70381, 211143, 351905, 633429, 1055715, 1900287, 3167145, 5700861, 9501435, 28504305]

約数ペア:

[(1, 28504305), (3, 9501435), (5, 5700861), (9, 3167145), (15, 1900287), (27, 1055715), (45, 633429), (81, 351905), (135, 211143), (405, 70381)]