20873223

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{8081}}^1$

素因数の和:8135

約数の個数: 24

約数和(自身を含む): 35302176

約数和(自身を除く): 14428953

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 8081, 24243, 56567, 72729, 169701, 331321, 509103, 993963, 2319247, 2981889, 6957741, 20873223]

約数ペア:

[(1, 20873223), (3, 6957741), (7, 2981889), (9, 2319247), (21, 993963), (41, 509103), (63, 331321), (123, 169701), (287, 72729), (369, 56567), (861, 24243), (2583, 8081)]