2102691555

素因数分解:

$3^4\times 5^1\times {\mathrm{5191831}}^1$

素因数の和:5191848

約数の個数: 20

約数和(自身を含む): 3769270032

約数和(自身を除く): 1666578477

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 5191831, 15575493, 25959155, 46726479, 77877465, 140179437, 233632395, 420538311, 700897185, 2102691555]

約数ペア:

[(1, 2102691555), (3, 700897185), (5, 420538311), (9, 233632395), (15, 140179437), (27, 77877465), (45, 46726479), (81, 25959155), (135, 15575493), (405, 5191831)]