20628741567

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{18534359}}^1$

素因数の和:18534422

約数の個数: 16

約数和(自身を含む): 32027374080

約数和(自身を除く): 11398632513

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 18534359, 55603077, 129740513, 389221539, 982321027, 2946963081, 6876247189, 20628741567]

約数ペア:

[(1, 20628741567), (3, 6876247189), (7, 2946963081), (21, 982321027), (53, 389221539), (159, 129740513), (371, 55603077), (1113, 18534359)]