18390337

素因数分解:

$7^2\times {\mathrm{89}}^1\times {\mathrm{4217}}^1$

素因数の和:4320

約数の個数: 12

約数和(自身を含む): 21638340

約数和(自身を除く): 3248003

約数列:

[1, 7, 49, 89, 623, 4217, 4361, 29519, 206633, 375313, 2627191, 18390337]

約数ペア:

[(1, 18390337), (7, 2627191), (49, 375313), (89, 206633), (623, 29519), (4217, 4361)]