20888721

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{8087}}^1$

素因数の和:8141

約数の個数: 24

約数和(自身を含む): 35328384

約数和(自身を除く): 14439663

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 8087, 24261, 56609, 72783, 169827, 331567, 509481, 994701, 2320969, 2984103, 6962907, 20888721]

約数ペア:

[(1, 20888721), (3, 6962907), (7, 2984103), (9, 2320969), (21, 994701), (41, 509481), (63, 331567), (123, 169827), (287, 72783), (369, 56609), (861, 24261), (2583, 8087)]