21742684

素因数分解:

$2^2\times {\mathrm{809}}^1\times {\mathrm{6719}}^1$

素因数の和:7532

約数の個数: 12

約数和(自身を含む): 38102400

約数和(自身を除く): 16359716

約数列:

[1, 2, 4, 809, 1618, 3236, 6719, 13438, 26876, 5435671, 10871342, 21742684]

約数ペア:

[(1, 21742684), (2, 10871342), (4, 5435671), (809, 26876), (1618, 13438), (3236, 6719)]