19918943

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{601}}^1$

素因数の和:766

約数の個数: 16

約数和(自身を含む): 22885632

約数和(自身を除く): 2966689

約数列:

[1, 11, 23, 131, 253, 601, 1441, 3013, 6611, 13823, 33143, 78731, 152053, 866041, 1810813, 19918943]

約数ペア:

[(1, 19918943), (11, 1810813), (23, 866041), (131, 152053), (253, 78731), (601, 33143), (1441, 13823), (3013, 6611)]