91218491

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{2381}}^1$

素因数の和:2822

約数の個数: 16

約数和(自身を含む): 112582848

約数和(自身を除く): 21364357

約数列:

[1, 7, 13, 91, 421, 2381, 2947, 5473, 16667, 30953, 38311, 216671, 1002401, 7016807, 13031213, 91218491]

約数ペア:

[(1, 91218491), (7, 13031213), (13, 7016807), (91, 1002401), (421, 216671), (2381, 38311), (2947, 30953), (5473, 16667)]