20681168

素因数分解:

$2^4\times {\mathrm{1123}}^1\times {\mathrm{1151}}^1$

素因数の和:2282

約数の個数: 20

約数和(自身を含む): 40140288

約数和(自身を除く): 19459120

約数列:

[1, 2, 4, 8, 16, 1123, 1151, 2246, 2302, 4492, 4604, 8984, 9208, 17968, 18416, 1292573, 2585146, 5170292, 10340584, 20681168]

約数ペア:

[(1, 20681168), (2, 10340584), (4, 5170292), (8, 2585146), (16, 1292573), (1123, 18416), (1151, 17968), (2246, 9208), (2302, 8984), (4492, 4604)]