21365539

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1033}}^1$

素因数の和:1126

約数の個数: 16

約数和(自身を含む): 24203872

約数和(自身を除く): 2838333

約数列:

[1, 13, 37, 43, 481, 559, 1033, 1591, 13429, 20683, 38221, 44419, 496873, 577447, 1643503, 21365539]

約数ペア:

[(1, 21365539), (13, 1643503), (37, 577447), (43, 496873), (481, 44419), (559, 38221), (1033, 20683), (1591, 13429)]