21188667

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{1481}}^1$

素因数の和:1754

約数の個数: 16

約数和(自身を含む): 29877120

約数和(自身を除く): 8688453

約数列:

[1, 3, 19, 57, 251, 753, 1481, 4443, 4769, 14307, 28139, 84417, 371731, 1115193, 7062889, 21188667]

約数ペア:

[(1, 21188667), (3, 7062889), (19, 1115193), (57, 371731), (251, 84417), (753, 28139), (1481, 14307), (4443, 4769)]