21068613

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{14723}}^1$

素因数の和:14785

約数の個数: 16

約数和(自身を含む): 31803840

約数和(自身を除く): 10735227

約数列:

[1, 3, 9, 27, 53, 159, 477, 1431, 14723, 44169, 132507, 397521, 780319, 2340957, 7022871, 21068613]

約数ペア:

[(1, 21068613), (3, 7022871), (9, 2340957), (27, 780319), (53, 397521), (159, 132507), (477, 44169), (1431, 14723)]