20919741

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{21589}}^1$

素因数の和:21628

約数の個数: 16

約数和(自身を含む): 31089600

約数和(自身を除く): 10169859

約数列:

[1, 3, 17, 19, 51, 57, 323, 969, 21589, 64767, 367013, 410191, 1101039, 1230573, 6973247, 20919741]

約数ペア:

[(1, 20919741), (3, 6973247), (17, 1230573), (19, 1101039), (51, 410191), (57, 367013), (323, 64767), (969, 21589)]