18681929

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{4243}}^1$

素因数の和:4304

約数の個数: 16

約数和(自身を含む): 23223168

約数和(自身を除く): 4541239

約数列:

[1, 7, 17, 37, 119, 259, 629, 4243, 4403, 29701, 72131, 156991, 504917, 1098937, 2668847, 18681929]

約数ペア:

[(1, 18681929), (7, 2668847), (17, 1098937), (37, 504917), (119, 156991), (259, 72131), (629, 29701), (4243, 4403)]