20938492043

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{285721}}^1$

素因数の和:285795

約数の個数: 24

約数和(自身を含む): 26126419680

約数和(自身を除く): 5187927637

約数列:

[1, 7, 19, 29, 133, 203, 361, 551, 2527, 3857, 10469, 73283, 285721, 2000047, 5428699, 8285909, 38000893, 58001363, 103145281, 157432271, 722016967, 1102025897, 2991213149, 20938492043]

約数ペア:

[(1, 20938492043), (7, 2991213149), (19, 1102025897), (29, 722016967), (133, 157432271), (203, 103145281), (361, 58001363), (551, 38000893), (2527, 8285909), (3857, 5428699), (10469, 2000047), (73283, 285721)]