18644878

素因数分解:

$2^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{9721}}^1$

素因数の和:9867

約数の個数: 16

約数和(自身を含む): 32199264

約数和(自身を除く): 13554386

約数列:

[1, 2, 7, 14, 137, 274, 959, 1918, 9721, 19442, 68047, 136094, 1331777, 2663554, 9322439, 18644878]

約数ペア:

[(1, 18644878), (2, 9322439), (7, 2663554), (14, 1331777), (137, 136094), (274, 68047), (959, 19442), (1918, 9721)]