21406161

素因数分解:

$3^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{4831}}^1$

素因数の和:5052

約数の個数: 16

約数和(自身を含む): 32780288

約数和(自身を除く): 11374127

約数列:

[1, 3, 7, 21, 211, 633, 1477, 4431, 4831, 14493, 33817, 101451, 1019341, 3058023, 7135387, 21406161]

約数ペア:

[(1, 21406161), (3, 7135387), (7, 3058023), (21, 1019341), (211, 101451), (633, 33817), (1477, 14493), (4431, 4831)]