18713191

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2473}}^1$

素因数の和:2550

約数の個数: 16

約数和(自身を含む): 22800384

約数和(自身を除く): 4087193

約数列:

[1, 7, 23, 47, 161, 329, 1081, 2473, 7567, 17311, 56879, 116231, 398153, 813617, 2673313, 18713191]

約数ペア:

[(1, 18713191), (7, 2673313), (23, 813617), (47, 398153), (161, 116231), (329, 56879), (1081, 17311), (2473, 7567)]