20097921081

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{13479491}}^1$

素因数の和:13479572

約数の個数: 16

約数和(自身を含む): 31056749568

約数和(自身を除く): 10958828487

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 13479491, 40438473, 94356437, 283069311, 957043861, 2871131583, 6699307027, 20097921081]

約数ペア:

[(1, 20097921081), (3, 6699307027), (7, 2871131583), (21, 957043861), (71, 283069311), (213, 94356437), (497, 40438473), (1491, 13479491)]