28887691

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{557}}^1$

素因数の和:834

約数の個数: 16

約数和(自身を含む): 34283520

約数和(自身を除く): 5395829

約数列:

[1, 7, 31, 217, 239, 557, 1673, 3899, 7409, 17267, 51863, 120869, 133123, 931861, 4126813, 28887691]

約数ペア:

[(1, 28887691), (7, 4126813), (31, 931861), (217, 133123), (239, 120869), (557, 51863), (1673, 17267), (3899, 7409)]