21090777

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1\times {\mathrm{757}}^1$

素因数の和:1048

約数の個数: 16

約数和(自身を含む): 29034432

約数和(自身を除く): 7943655

約数列:

[1, 3, 37, 111, 251, 753, 757, 2271, 9287, 27861, 28009, 84027, 190007, 570021, 7030259, 21090777]

約数ペア:

[(1, 21090777), (3, 7030259), (37, 570021), (111, 190007), (251, 84027), (753, 28009), (757, 27861), (2271, 9287)]