27620789

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{1321}}^1$

素因数の和:1460

約数の個数: 16

約数和(自身を含む): 32997120

約数和(自身を除く): 5376331

約数列:

[1, 7, 29, 103, 203, 721, 1321, 2987, 9247, 20909, 38309, 136063, 268163, 952441, 3945827, 27620789]

約数ペア:

[(1, 27620789), (7, 3945827), (29, 952441), (103, 268163), (203, 136063), (721, 38309), (1321, 20909), (2987, 9247)]