21084297

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{8069}}^1$

素因数の和:8152

約数の個数: 16

約数和(自身を含む): 30730560

約数和(自身を除く): 9646263

約数列:

[1, 3, 13, 39, 67, 201, 871, 2613, 8069, 24207, 104897, 314691, 540623, 1621869, 7028099, 21084297]

約数ペア:

[(1, 21084297), (3, 7028099), (13, 1621869), (39, 540623), (67, 314691), (201, 104897), (871, 24207), (2613, 8069)]