21430185

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{2459}}^1$

素因数の和:2557

約数の個数: 32

約数和(自身を含む): 39674880

約数和(自身を除く): 18244695

約数列:

[1, 3, 5, 7, 15, 21, 35, 83, 105, 249, 415, 581, 1245, 1743, 2459, 2905, 7377, 8715, 12295, 17213, 36885, 51639, 86065, 204097, 258195, 612291, 1020485, 1428679, 3061455, 4286037, 7143395, 21430185]

約数ペア:

[(1, 21430185), (3, 7143395), (5, 4286037), (7, 3061455), (15, 1428679), (21, 1020485), (35, 612291), (83, 258195), (105, 204097), (249, 86065), (415, 51639), (581, 36885), (1245, 17213), (1743, 12295), (2459, 8715), (2905, 7377)]