18665686

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{19403}}^1$

素因数の和:19455

約数の個数: 16

約数和(自身を含む): 30968784

約数和(自身を除く): 12303098

約数列:

[1, 2, 13, 26, 37, 74, 481, 962, 19403, 38806, 252239, 504478, 717911, 1435822, 9332843, 18665686]

約数ペア:

[(1, 18665686), (2, 9332843), (13, 1435822), (26, 717911), (37, 504478), (74, 252239), (481, 38806), (962, 19403)]