21192249

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{12637}}^1$

素因数の和:12696

約数の個数: 16

約数和(自身を含む): 31140032

約数和(自身を除く): 9947783

約数列:

[1, 3, 13, 39, 43, 129, 559, 1677, 12637, 37911, 164281, 492843, 543391, 1630173, 7064083, 21192249]

約数ペア:

[(1, 21192249), (3, 7064083), (13, 1630173), (39, 543391), (43, 492843), (129, 164281), (559, 37911), (1677, 12637)]