28126021

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{11783}}^1$

素因数の和:11832

約数の個数: 16

約数和(自身を含む): 36200448

約数和(自身を除く): 8074427

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 11783, 82481, 129613, 365273, 907291, 2556911, 4018003, 28126021]

約数ペア:

[(1, 28126021), (7, 4018003), (11, 2556911), (31, 907291), (77, 365273), (217, 129613), (341, 82481), (2387, 11783)]