20218880085

素因数分解:

$3^1\times 5^1\times {\mathrm{20857}}^1\times {\mathrm{64627}}^1$

素因数の和:85492

約数の個数: 16

約数和(自身を含む): 32352259776

約数和(自身を除く): 12133379691

約数列:

[1, 3, 5, 15, 20857, 62571, 64627, 104285, 193881, 312855, 323135, 969405, 1347925339, 4043776017, 6739626695, 20218880085]

約数ペア:

[(1, 20218880085), (3, 6739626695), (5, 4043776017), (15, 1347925339), (20857, 969405), (62571, 323135), (64627, 312855), (104285, 193881)]