28223991

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{14723}}^1$

素因数の和:14803

約数の個数: 16

約数和(自身を含む): 42405120

約数和(自身を除く): 14181129

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 14723, 44169, 132507, 397521, 1045333, 3135999, 9407997, 28223991]

約数ペア:

[(1, 28223991), (3, 9407997), (9, 3135999), (27, 1045333), (71, 397521), (213, 132507), (639, 44169), (1917, 14723)]