20727404

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{1223}}^1$

素因数の和:1469

約数の個数: 24

約数和(自身を含む): 38384640

約数和(自身を除く): 17657236

約数列:

[1, 2, 4, 19, 38, 76, 223, 446, 892, 1223, 2446, 4237, 4892, 8474, 16948, 23237, 46474, 92948, 272729, 545458, 1090916, 5181851, 10363702, 20727404]

約数ペア:

[(1, 20727404), (2, 10363702), (4, 5181851), (19, 1090916), (38, 545458), (76, 272729), (223, 92948), (446, 46474), (892, 23237), (1223, 16948), (2446, 8474), (4237, 4892)]