20843907

素因数分解:

$3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{4153}}^1$

素因数の和:4402

約数の個数: 16

約数和(自身を含む): 31902720

約数和(自身を除く): 11058813

約数列:

[1, 3, 7, 21, 239, 717, 1673, 4153, 5019, 12459, 29071, 87213, 992567, 2977701, 6947969, 20843907]

約数ペア:

[(1, 20843907), (3, 6947969), (7, 2977701), (21, 992567), (239, 87213), (717, 29071), (1673, 12459), (4153, 5019)]