21064539

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{283}}^1\times {\mathrm{577}}^1$

素因数の和:906

約数の個数: 16

約数和(自身を含む): 28890752

約数和(自身を除く): 7826213

約数列:

[1, 3, 43, 129, 283, 577, 849, 1731, 12169, 24811, 36507, 74433, 163291, 489873, 7021513, 21064539]

約数ペア:

[(1, 21064539), (3, 7021513), (43, 489873), (129, 163291), (283, 74433), (577, 36507), (849, 24811), (1731, 12169)]