18891254

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1\times {\mathrm{769}}^1$

素因数の和:1015

約数の個数: 16

約数和(自身を含む): 28939680

約数和(自身を除く): 10048426

約数列:

[1, 2, 71, 142, 173, 346, 769, 1538, 12283, 24566, 54599, 109198, 133037, 266074, 9445627, 18891254]

約数ペア:

[(1, 18891254), (2, 9445627), (71, 266074), (142, 133037), (173, 109198), (346, 54599), (769, 24566), (1538, 12283)]