189942981

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{1667}}^1\times {\mathrm{1999}}^1$

素因数の和:3688

約数の個数: 16

約数和(自身を含む): 266880000

約数和(自身を除く): 76937019

約数列:

[1, 3, 19, 57, 1667, 1999, 5001, 5997, 31673, 37981, 95019, 113943, 3332333, 9996999, 63314327, 189942981]

約数ペア:

[(1, 189942981), (3, 63314327), (19, 9996999), (57, 3332333), (1667, 113943), (1999, 95019), (5001, 37981), (5997, 31673)]