19820728

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{46747}}^1$

素因数の和:46806

約数の個数: 16

約数和(自身を含む): 37865880

約数和(自身を除く): 18045152

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 46747, 93494, 186988, 373976, 2477591, 4955182, 9910364, 19820728]

約数ペア:

[(1, 19820728), (2, 9910364), (4, 4955182), (8, 2477591), (53, 373976), (106, 186988), (212, 93494), (424, 46747)]