81843895

素因数分解:

$5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{16823}}^1$

素因数の和:16974

約数の個数: 16

約数和(自身を含む): 113057280

約数和(自身を除く): 31213385

約数列:

[1, 5, 7, 35, 139, 695, 973, 4865, 16823, 84115, 117761, 588805, 2338397, 11691985, 16368779, 81843895]

約数ペア:

[(1, 81843895), (5, 16368779), (7, 11691985), (35, 2338397), (139, 588805), (695, 117761), (973, 84115), (4865, 16823)]