18821272

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{54713}}^1$

素因数の和:54762

約数の個数: 16

約数和(自身を含む): 36111240

約数和(自身を除く): 17289968

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 54713, 109426, 218852, 437704, 2352659, 4705318, 9410636, 18821272]

約数ペア:

[(1, 18821272), (2, 9410636), (4, 4705318), (8, 2352659), (43, 437704), (86, 218852), (172, 109426), (344, 54713)]