20887113

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{3853}}^1$

素因数の和:4008

約数の個数: 16

約数和(自身を含む): 30215360

約数和(自身を除く): 9328247

約数列:

[1, 3, 13, 39, 139, 417, 1807, 3853, 5421, 11559, 50089, 150267, 535567, 1606701, 6962371, 20887113]

約数ペア:

[(1, 20887113), (3, 6962371), (13, 1606701), (39, 535567), (139, 150267), (417, 50089), (1807, 11559), (3853, 5421)]