2109905

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2621}}^1$

素因数の和:2656

約数の個数: 16

約数和(自身を含む): 3020544

約数和(自身を除く): 910639

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 2621, 13105, 18347, 60283, 91735, 301415, 421981, 2109905]

約数ペア:

[(1, 2109905), (5, 421981), (7, 301415), (23, 91735), (35, 60283), (115, 18347), (161, 13105), (805, 2621)]