18985185

素因数分解:

$3^4\times 5^1\times {\mathrm{46877}}^1$

素因数の和:46894

約数の個数: 20

約数和(自身を含む): 34033428

約数和(自身を除く): 15048243

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 46877, 140631, 234385, 421893, 703155, 1265679, 2109465, 3797037, 6328395, 18985185]

約数ペア:

[(1, 18985185), (3, 6328395), (5, 3797037), (9, 2109465), (15, 1265679), (27, 703155), (45, 421893), (81, 234385), (135, 140631), (405, 46877)]