28711991

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{53269}}^1$

素因数の和:53294

約数の個数: 12

約数和(自身を含む): 36436680

約数和(自身を除く): 7724689

約数列:

[1, 7, 11, 49, 77, 539, 53269, 372883, 585959, 2610181, 4101713, 28711991]

約数ペア:

[(1, 28711991), (7, 4101713), (11, 2610181), (49, 585959), (77, 372883), (539, 53269)]