28870394

素因数分解:

$2^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{18919}}^1$

素因数の和:19037

約数の個数: 16

約数和(自身を含む): 49948800

約数和(自身を除く): 21078406

約数列:

[1, 2, 7, 14, 109, 218, 763, 1526, 18919, 37838, 132433, 264866, 2062171, 4124342, 14435197, 28870394]

約数ペア:

[(1, 28870394), (2, 14435197), (7, 4124342), (14, 2062171), (109, 264866), (218, 132433), (763, 37838), (1526, 18919)]