20720222

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{14737}}^1$

素因数の和:14795

約数の個数: 16

約数和(自身を含む): 33602640

約数和(自身を除く): 12882418

約数列:

[1, 2, 19, 37, 38, 74, 703, 1406, 14737, 29474, 280003, 545269, 560006, 1090538, 10360111, 20720222]

約数ペア:

[(1, 20720222), (2, 10360111), (19, 1090538), (37, 560006), (38, 545269), (74, 280003), (703, 29474), (1406, 14737)]