19806832

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{28789}}^1$

素因数の和:28840

約数の個数: 20

約数和(自身を含む): 39269560

約数和(自身を除く): 19462728

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 28789, 57578, 115156, 230312, 460624, 1237927, 2475854, 4951708, 9903416, 19806832]

約数ペア:

[(1, 19806832), (2, 9903416), (4, 4951708), (8, 2475854), (16, 1237927), (43, 460624), (86, 230312), (172, 115156), (344, 57578), (688, 28789)]