21480795

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{7577}}^1$

素因数の和:7601

約数の個数: 40

約数和(自身を含む): 44013024

約数和(自身を除く): 22532229

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 945, 2835, 7577, 22731, 37885, 53039, 68193, 113655, 159117, 204579, 265195, 340965, 477351, 613737, 795585, 1022895, 1432053, 2386755, 3068685, 4296159, 7160265, 21480795]

約数ペア:

[(1, 21480795), (3, 7160265), (5, 4296159), (7, 3068685), (9, 2386755), (15, 1432053), (21, 1022895), (27, 795585), (35, 613737), (45, 477351), (63, 340965), (81, 265195), (105, 204579), (135, 159117), (189, 113655), (315, 68193), (405, 53039), (567, 37885), (945, 22731), (2835, 7577)]