18644428

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{659}}^1$

素因数の和:1317

約数の個数: 24

約数和(自身を含む): 35703360

約数和(自身を除く): 17058932

約数列:

[1, 2, 4, 11, 22, 44, 643, 659, 1286, 1318, 2572, 2636, 7073, 7249, 14146, 14498, 28292, 28996, 423737, 847474, 1694948, 4661107, 9322214, 18644428]

約数ペア:

[(1, 18644428), (2, 9322214), (4, 4661107), (11, 1694948), (22, 847474), (44, 423737), (643, 28996), (659, 28292), (1286, 14498), (1318, 14146), (2572, 7249), (2636, 7073)]