19933221

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{86291}}^1$

素因数の和:86312

約数の個数: 16

約数和(自身を含む): 33136128

約数和(自身を除く): 13202907

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 86291, 258873, 604037, 949201, 1812111, 2847603, 6644407, 19933221]

約数ペア:

[(1, 19933221), (3, 6644407), (7, 2847603), (11, 1812111), (21, 949201), (33, 604037), (77, 258873), (231, 86291)]