21227001

素因数分解:

$3^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1\times {\mathrm{523}}^1$

素因数の和:772

約数の個数: 16

約数和(自身を含む): 28874496

約数和(自身を除く): 7647495

約数列:

[1, 3, 83, 163, 249, 489, 523, 1569, 13529, 40587, 43409, 85249, 130227, 255747, 7075667, 21227001]

約数ペア:

[(1, 21227001), (3, 7075667), (83, 255747), (163, 130227), (249, 85249), (489, 43409), (523, 40587), (1569, 13529)]