20753931

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{13381}}^1$

素因数の和:13442

約数の個数: 16

約数和(自身を含む): 30832128

約数和(自身を除く): 10078197

約数列:

[1, 3, 11, 33, 47, 141, 517, 1551, 13381, 40143, 147191, 441573, 628907, 1886721, 6917977, 20753931]

約数ペア:

[(1, 20753931), (3, 6917977), (11, 1886721), (33, 628907), (47, 441573), (141, 147191), (517, 40143), (1551, 13381)]