81218158

素因数分解:

$2^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{21407}}^1$

素因数の和:21687

約数の個数: 16

約数和(自身を含む): 139751424

約数和(自身を除く): 58533266

約数列:

[1, 2, 7, 14, 271, 542, 1897, 3794, 21407, 42814, 149849, 299698, 5801297, 11602594, 40609079, 81218158]

約数ペア:

[(1, 81218158), (2, 40609079), (7, 11602594), (14, 5801297), (271, 299698), (542, 149849), (1897, 42814), (3794, 21407)]