20971918

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{743}}^1\times {\mathrm{1283}}^1$

素因数の和:2039

約数の個数: 16

約数和(自身を含む): 34390656

約数和(自身を除く): 13418738

約数列:

[1, 2, 11, 22, 743, 1283, 1486, 2566, 8173, 14113, 16346, 28226, 953269, 1906538, 10485959, 20971918]

約数ペア:

[(1, 20971918), (2, 10485959), (11, 1906538), (22, 953269), (743, 28226), (1283, 16346), (1486, 14113), (2566, 8173)]