81687151

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{16937}}^1$

素因数の和:17010

約数の個数: 16

約数和(自身を含む): 102441024

約数和(自身を除く): 20753873

約数列:

[1, 7, 13, 53, 91, 371, 689, 4823, 16937, 118559, 220181, 897661, 1541267, 6283627, 11669593, 81687151]

約数ペア:

[(1, 81687151), (7, 11669593), (13, 6283627), (53, 1541267), (91, 897661), (371, 220181), (689, 118559), (4823, 16937)]