18521992

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2341}}^1$

素因数の和:2413

約数の個数: 32

約数和(自身を含む): 37097280

約数和(自身を除く): 18575288

約数列:

[1, 2, 4, 8, 23, 43, 46, 86, 92, 172, 184, 344, 989, 1978, 2341, 3956, 4682, 7912, 9364, 18728, 53843, 100663, 107686, 201326, 215372, 402652, 430744, 805304, 2315249, 4630498, 9260996, 18521992]

約数ペア:

[(1, 18521992), (2, 9260996), (4, 4630498), (8, 2315249), (23, 805304), (43, 430744), (46, 402652), (86, 215372), (92, 201326), (172, 107686), (184, 100663), (344, 53843), (989, 18728), (1978, 9364), (2341, 7912), (3956, 4682)]