18521648

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{26921}}^1$

素因数の和:26972

約数の個数: 20

約数和(自身を含む): 36721608

約数和(自身を除く): 18199960

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 26921, 53842, 107684, 215368, 430736, 1157603, 2315206, 4630412, 9260824, 18521648]

約数ペア:

[(1, 18521648), (2, 9260824), (4, 4630412), (8, 2315206), (16, 1157603), (43, 430736), (86, 215368), (172, 107684), (344, 53842), (688, 26921)]