20965021

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{8783}}^1$

素因数の和:8832

約数の個数: 16

約数和(自身を含む): 26984448

約数和(自身を除く): 6019427

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 8783, 61481, 96613, 272273, 676291, 1905911, 2995003, 20965021]

約数ペア:

[(1, 20965021), (7, 2995003), (11, 1905911), (31, 676291), (77, 272273), (217, 96613), (341, 61481), (2387, 8783)]