28420147

素因数分解:

$7^2\times {\mathrm{619}}^1\times {\mathrm{937}}^1$

素因数の和:1570

約数の個数: 12

約数和(自身を含む): 33148920

約数和(自身を除く): 4728773

約数列:

[1, 7, 49, 619, 937, 4333, 6559, 30331, 45913, 580003, 4060021, 28420147]

約数ペア:

[(1, 28420147), (7, 4060021), (49, 580003), (619, 45913), (937, 30331), (4333, 6559)]