19884508

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{17321}}^1$

素因数の和:17373

約数の個数: 24

約数和(自身を含む): 40741344

約数和(自身を除く): 20856836

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 17321, 34642, 69284, 121247, 242494, 484988, 710161, 1420322, 2840644, 4971127, 9942254, 19884508]

約数ペア:

[(1, 19884508), (2, 9942254), (4, 4971127), (7, 2840644), (14, 1420322), (28, 710161), (41, 484988), (82, 242494), (164, 121247), (287, 69284), (574, 34642), (1148, 17321)]