20091057

素因数分解:

$3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{4003}}^1$

素因数の和:4252

約数の個数: 16

約数和(自身を含む): 30750720

約数和(自身を除く): 10659663

約数列:

[1, 3, 7, 21, 239, 717, 1673, 4003, 5019, 12009, 28021, 84063, 956717, 2870151, 6697019, 20091057]

約数ペア:

[(1, 20091057), (3, 6697019), (7, 2870151), (21, 956717), (239, 84063), (717, 28021), (1673, 12009), (4003, 5019)]