28191373

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{1223}}^1$

素因数の和:1356

約数の個数: 16

約数和(自身を含む): 33488640

約数和(自身を除く): 5297267

約数列:

[1, 7, 37, 89, 259, 623, 1223, 3293, 8561, 23051, 45251, 108847, 316757, 761929, 4027339, 28191373]

約数ペア:

[(1, 28191373), (7, 4027339), (37, 761929), (89, 316757), (259, 108847), (623, 45251), (1223, 23051), (3293, 8561)]