81121678

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{194071}}^1$

素因数の和:194103

約数の個数: 16

約数和(自身を含む): 139731840

約数和(自身を除く): 58610162

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 194071, 388142, 2134781, 3687349, 4269562, 7374698, 40560839, 81121678]

約数ペア:

[(1, 81121678), (2, 40560839), (11, 7374698), (19, 4269562), (22, 3687349), (38, 2134781), (209, 388142), (418, 194071)]