18861718

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{6991}}^1$

素因数の和:7083

約数の個数: 16

約数和(自身を含む): 30205440

約数和(自身を除く): 11343722

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 6991, 13982, 132829, 265658, 496361, 992722, 9430859, 18861718]

約数ペア:

[(1, 18861718), (2, 9430859), (19, 992722), (38, 496361), (71, 265658), (142, 132829), (1349, 13982), (2698, 6991)]