20964363

素因数分解:

$3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{4177}}^1$

素因数の和:4426

約数の個数: 16

約数和(自身を含む): 32087040

約数和(自身を除く): 11122677

約数列:

[1, 3, 7, 21, 239, 717, 1673, 4177, 5019, 12531, 29239, 87717, 998303, 2994909, 6988121, 20964363]

約数ペア:

[(1, 20964363), (3, 6988121), (7, 2994909), (21, 998303), (239, 87717), (717, 29239), (1673, 12531), (4177, 5019)]