18804656

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{90407}}^1$

素因数の和:90428

約数の個数: 20

約数和(自身を含む): 39237072

約数和(自身を除く): 20432416

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 90407, 180814, 361628, 723256, 1175291, 1446512, 2350582, 4701164, 9402328, 18804656]

約数ペア:

[(1, 18804656), (2, 9402328), (4, 4701164), (8, 2350582), (13, 1446512), (16, 1175291), (26, 723256), (52, 361628), (104, 180814), (208, 90407)]