20697523

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{691}}^1$

素因数の和:1098

約数の個数: 16

約数和(自身を含む): 25908480

約数和(自身を除く): 5210957

約数列:

[1, 7, 11, 77, 389, 691, 2723, 4279, 4837, 7601, 29953, 53207, 268799, 1881593, 2956789, 20697523]

約数ペア:

[(1, 20697523), (7, 2956789), (11, 1881593), (77, 268799), (389, 53207), (691, 29953), (2723, 7601), (4279, 4837)]