21242961

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{2503}}^1$

素因数の和:2573

約数の個数: 24

約数和(自身を含む): 32812416

約数和(自身を除く): 11569455

約数列:

[1, 3, 9, 23, 41, 69, 123, 207, 369, 943, 2503, 2829, 7509, 8487, 22527, 57569, 102623, 172707, 307869, 518121, 923607, 2360329, 7080987, 21242961]

約数ペア:

[(1, 21242961), (3, 7080987), (9, 2360329), (23, 923607), (41, 518121), (69, 307869), (123, 172707), (207, 102623), (369, 57569), (943, 22527), (2503, 8487), (2829, 7509)]