20891954

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{1597}}^1$

素因数の和:1841

約数の個数: 16

約数和(自身を含む): 32522496

約数和(自身を除く): 11630542

約数列:

[1, 2, 31, 62, 211, 422, 1597, 3194, 6541, 13082, 49507, 99014, 336967, 673934, 10445977, 20891954]

約数ペア:

[(1, 20891954), (2, 10445977), (31, 673934), (62, 336967), (211, 99014), (422, 49507), (1597, 13082), (3194, 6541)]