20217759

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{3709}}^1$

素因数の和:3814

約数の個数: 16

約数和(自身を含む): 28492800

約数和(自身を除く): 8275041

約数列:

[1, 3, 23, 69, 79, 237, 1817, 3709, 5451, 11127, 85307, 255921, 293011, 879033, 6739253, 20217759]

約数ペア:

[(1, 20217759), (3, 6739253), (23, 879033), (69, 293011), (79, 255921), (237, 85307), (1817, 11127), (3709, 5451)]