2158471

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:222

約数の個数: 16

約数和(自身を含む): 2585088

約数和(自身を除く): 426617

約数列:

[1, 7, 43, 71, 101, 301, 497, 707, 3053, 4343, 7171, 21371, 30401, 50197, 308353, 2158471]

約数ペア:

[(1, 2158471), (7, 308353), (43, 50197), (71, 30401), (101, 21371), (301, 7171), (497, 4343), (707, 3053)]