20158369

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{673}}^1$

素因数の和:1080

約数の個数: 16

約数和(自身を含む): 25234560

約数和(自身を除く): 5076191

約数列:

[1, 7, 11, 77, 389, 673, 2723, 4279, 4711, 7403, 29953, 51821, 261797, 1832579, 2879767, 20158369]

約数ペア:

[(1, 20158369), (7, 2879767), (11, 1832579), (77, 261797), (389, 51821), (673, 29953), (2723, 7403), (4279, 4711)]