21181270

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{192557}}^1$

素因数の和:192575

約数の個数: 16

約数和(自身を含む): 41592528

約数和(自身を除く): 20411258

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 192557, 385114, 962785, 1925570, 2118127, 4236254, 10590635, 21181270]

約数ペア:

[(1, 21181270), (2, 10590635), (5, 4236254), (10, 2118127), (11, 1925570), (22, 962785), (55, 385114), (110, 192557)]