18716878

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{1481}}^1$

素因数の和:1643

約数の個数: 16

約数和(自身を含む): 28810080

約数和(自身を除く): 10093202

約数列:

[1, 2, 71, 89, 142, 178, 1481, 2962, 6319, 12638, 105151, 131809, 210302, 263618, 9358439, 18716878]

約数ペア:

[(1, 18716878), (2, 9358439), (71, 263618), (89, 210302), (142, 131809), (178, 105151), (1481, 12638), (2962, 6319)]